lundi 22 mai 2017

Astronomers Confirm Orbital Details of TRAPPIST-1’s Least Understood Planet












NASA - Kepler Space Telescope patch.

May 22, 2017

Scientists using NASA's Kepler Space Telescope identified a regular pattern in the orbits of the planets in the TRAPPIST-1 system that confirmed suspected details about the orbit of its outermost and least understood planet, TRAPPIST-1h.

TRAPPIST-1 is only eight percent the mass of our sun, making it a cooler and less luminous star. It’s home to seven Earth-size planets, three of which orbit in their star's habitable zone—the range of distances from a star where liquid water could pool on the surface of a rocky planet. The system is located about 40 light-years away in the constellation of Aquarius and is estimated to be between 3 and 8 billion years old.

Scientists announced that the system has seven Earth-sized planets at a NASA press conference on Feb. 22. NASA's Spitzer Space Telescope, the TRAPPIST (Transiting Planets and Planetesimals Small Telescope) in Chile and other ground-based telescopes were used to detect and characterize the planets. But the collaboration only had an estimate for the period of TRAPPIST-1h.

TRAPPIST-1 system orbits. Image Credit: NASA.

Astronomers from the University of Washington have used data from the Kepler spacecraft to confirm that TRAPPIST-1h orbits its star every 19 days. At six million miles from its cool dwarf star, TRAPPIST-1h is located beyond the outer edge of the habitable zone, and is likely too cold for life as we know it. The amount of energy (per unit) planet h receives from its star is comparable to what the dwarf planet Ceres, located in the asteroid belt between Mars and Jupiter, gets from our sun.

“It’s incredibly exciting that we’re learning more about this planetary system elsewhere, especially about planet h, which we barely had information on until now,” said Thomas Zurbuchen, associate administrator of NASA’s Science Mission Directorate at Headquarters in Washington. “This finding is a great example of how the scientific community is unleashing the power of complementary data from our different missions to make such fascinating discoveries.”

"It really pleased me that TRAPPIST-1h was exactly where our team predicted it to be. It had me worried for a while that we were seeing what we wanted to see -- after all, things are almost never exactly what you expect them to be in this field," said Rodrigo Luger, doctoral student at UW in Seattle, and lead author of the study published in the journal Nature Astronomy. "Nature usually surprises us at every turn, but, in this case, theory and observation matched perfectly."

Orbital Resonance – Harmony Among Celestial Bodies

Using the prior Spitzer data, the team recognized a mathematical pattern in the frequency at which each of the six innermost planets orbits their star. This complex but predictable pattern, called an orbital resonance, occurs when planets exert a regular, periodic gravitational tug on each other as they orbit their star.

To understand the concept of resonance, consider Jupiter's moons Io, Europa and Ganymede, which is the farthest out of the three. For every time Ganymede orbits Jupiter, Europa orbits twice and Io makes four trips around the planet. This 1:2:4 resonance is considered stable and if one moon were nudged off course, it would self-correct and lock back into a stable orbit. It is this harmonious influence between the seven TRAPPIST-1 siblings that keeps the system stable.

 TRAPPIST-1 system. Image Credit: NASA

These relationships, said Luger, suggested that by studying the orbital velocities of its neighboring planets, they could predict the exact orbital velocity, and hence also orbital period, of planet h, even before the Kepler observations. The team calculated six possible resonant periods for planet h that would not disrupt the stability of the system, but only one was not ruled out by additional data. The other five possibilities could have been observed in the Spitzer and ground-based data collected by the TRAPPIST team.

“All of this”, Luger said, “indicates that these orbital relationships were forged early in the life of the TRAPPIST-1 system, during the planet formation process.”

"The resonant structure is no coincidence, and points to an interesting dynamical history in which the planets likely migrated inward in lock-step," said Luger. "This makes the system a great laboratory for planet formation and migration theories."

Worldwide Real-time Collaboration

The Kepler spacecraft stared at the patch of sky home to the TRAPPIST-1 system from Dec. 15, 2016 to March 4 collecting data on the star's minuscule changes in brightness due to transiting planets as part of its second mission, K2. On March 8, the raw, uncalibrated data was released to the scientific community to begin their follow-up studies.

The work to confirm TRAPPIST-1h's orbital period immediately began and scientists from around the world took to social media to share in real-time the new information gleaned about the star's behavior and its brood of planets. Within two hours of the data release, the team confirmed their prediction of a 19-day orbital period.

"Pulling results out of data is always stimulating, but it was a rare treat to watch scientists across the world collaborate and share their progress near-real time on social media as they analyzed the data and identified the transits of TRAPPIST-1h," said Jessie Dotson, project scientist for the K2 mission at NASA's Ames Research Center in California's Silicon Valley. "The creativity and expediency by which the data has been put to use has been a particular thrilling aspect of K2's community-focused approach."

Kepler Space Telescope or K2. Image Credit: NASA

TRAPPIST-1's seven-planet chain of resonances established a record among known planetary systems, the previous holders being the systems Kepler-80 and Kepler-223, each with four resonant planets.

The TRAPPIST-1 system was first discovered in 2016 by the TRAPPIST collaboration, and was thought to have just three planets at that time. Additional planets were found with Spitzer and ground-based telescopes. NASA's Hubble Space Telescope is following up with atmospheric observations, and the James Webb Space Telescope will be able to probe potential atmospheres in further detail.

Ames manages the Kepler and K2 missions for NASA’s Science Mission Directorate. NASA's Jet Propulsion Laboratory in Pasadena, California, managed Kepler mission development. Ball Aerospace & Technologies Corp. operates the flight system with support from the Laboratory for Atmospheric and Space Physics at the University of Colorado in Boulder.

Related articles:

Ultracool Dwarf and the Seven Planets
http://orbiterchspacenews.blogspot.ch/2017/02/ultracool-dwarf-and-seven-planets.html

NASA's Kepler Provides Another Peek At Ultra-cool Neighbor
http://orbiterchspacenews.blogspot.ch/2017/03/nasas-kepler-provides-another-peek-at.html

Light From An Ultra-Cool Neighbor
http://orbiterchspacenews.blogspot.ch/2017/03/light-from-ultra-cool-neighbor.html

For more information about the Kepler and K2 missions, visit: http://www.nasa.gov/kepler

For more information about the TRAPPIST-1 system, visit: http://exoplanets.nasa.gov/trappist1

Images (mentioned), Text, Credits: NASA/Ames Research Center/Michele Johnson/JPL/Elizabeth Landau.

Best regards, Orbiter.ch

Slim Crescent of Ice










NASA - Cassini International logo.

May 22, 2017


The low angle of sunlight along the slim crescent of Saturn's moon Enceladus (313 miles or 504 kilometers across) highlights the many fractures and furrows on its icy surface.

This view looks toward the Saturn-facing hemisphere of Enceladus, which is dimly illuminated in the image above by sunlight reflected off Saturn. North on Enceladus is up and rotated 14 degrees to the left. The image was taken in visible light with the Cassini spacecraft narrow-angle camera on Dec. 26, 2016.

The view was obtained at a distance of approximately 104,000 miles (168,000 kilometers) from Enceladus. Image scale is 3,303 feet (1 kilometer) per pixel.

The Cassini mission is a cooperative project of NASA, ESA (the European Space Agency) and the Italian Space Agency. The Jet Propulsion Laboratory, a division of the California Institute of Technology in Pasadena, manages the mission for NASA's Science Mission Directorate, Washington. The Cassini orbiter and its two onboard cameras were designed, developed and assembled at JPL. The imaging operations center is based at the Space Science Institute in Boulder, Colorado.

For more information about the Cassini-Huygens mission visit https://saturn.jpl.nasa.gov and http://www.nasa.gov/cassini . The Cassini imaging team homepage is at http://ciclops.org and ESA website: http://www.esa.int/Our_Activities/Space_Science/Cassini-Huygens

Image, Text, Credits: NASA/Tony Greicius/JPL-Caltech/Space Science Institute.

Greetings, Orbiter.ch

dimanche 21 mai 2017

Spacewalk Planned to Change Out Failed Relay Box & Station Managers Give Go for Tuesday Spacewalk












ISS - Expedition 51 Mission patch.

May 21, 2017


Image above: The Soyuz MS-03 crew ship (foreground) and the Progress 66 cargo craft are pictured as the International Space Station orbits about 250 miles above Earth. Image Credit: NASA.

International Space Station Program managers met Sunday and gave approval for a contingency spacewalk no earlier than Tuesday by two Expedition 51 crewmembers to change out a multiplexer-demultiplexer (MDM) data relay box on the S0 truss that failed on Saturday morning. The cause of the MDM failure is not known. A final decision on a firm date for the spacewalk and who will conduct the spacewalk will be made later in the day Sunday.

International Space Station Program managers have given the green light for a contingency spacewalk on Tuesday by two Expedition 51 crewmembers to change out a multiplexer-demultiplexer (MDM) data relay box on the S0 truss that failed on Saturday morning. The cause of the MDM failure is not known. After a review of spacewalk preparations and crew readiness throughout the day Sunday, the decision was made to press ahead with the spacewalk on Tuesday. It will be conducted by Expedition 51 Commander Peggy Whitson and Flight Engineer Jack Fischer of NASA.

The data relay box is one of two fully redundant systems housed in the truss that control the functionality of radiators, solar arrays, cooling loops and other station hardware. The other MDM in the truss is functioning perfectly, providing uninterrupted telemetry routing to the station’s systems. The crew has never been in any danger, and the MDM failure, believed to be internal to the box itself, has had no impact on station activities.


Image above: This picture of the International Space Station was photographed from the space shuttle Atlantis as the orbiting complex and the shuttle performed their relative separation in the early hours of July 19, 2011. Image Credit: NASA.

On Sunday morning, Whitson prepared a spare data relay box and tested components installed in the replacement. She reported that the spare MDM was ready to be brought outside to replace the failed unit. Back on March 30, Whitson and Expedition 50 commander Shane Kimbrough of NASA conducted a spacewalk to install the same MDM with upgraded software tat failed Saturday.

A similar MDM replacement spacewalk was conducted in April 2014 by Expedition 39 crewmembers Steve Swanson and Rick Mastracchio of NASA.

Tuesday’s spacewalk will last about two hours in duration to replace the failed box. An additional task was added for Fischer to install a pair of wireless communications antennas on the Destiny Lab while Whitson replaces the failed data relay box. The antenna installation task was originally planned for the last spacewalk on May 12.


Image above: Astronaut Peggy Whitson is pictured with the Orbital ATK Cygnus resupply ship behind her during a spacewalk on May 12, 2017. Image Credit: NASA.

The contingency spacewalk will be the 201st in support of space station assembly and maintenance and the sixth conducted from the Quest airlock this year.

This will be the 10th spacewalk in Whitson’s career and the second for Fischer. Whitson will be designated as extravehicular crewmember 1 (EV 1) and will wear the suit with the red stripes. Fischer will be extravehicular crewmember 2 (EV 2) and will wear the suit with no stripes.

Tuesday’s spacewalk is expected to begin around 8 a.m. EDT, or earlier, if the crew is running ahead of schedule with its spacewalking preparations. NASA Television coverage will begin at 6:30 a.m.

Related links:

Expedition 51: https://www.nasa.gov/mission_pages/station/expeditions/expedition51/index.html

NASA TV: https://www.nasa.gov/multimedia/nasatv/index.html

Space Station Research and Technology: https://www.nasa.gov/mission_pages/station/research/index.html

International Space Station (ISS): https://www.nasa.gov/mission_pages/station/main/index.html

Images (mentioned), Text, Credits: NASA/Mark Garcia.

Greetings, Orbiter.ch

samedi 20 mai 2017

EPFL software at the command of satellites







EPFL - École Polytechnique Fédérale de Lausanne logo.

May 20, 2017

Around thirty CubeSats were deployed this week from the ISS - International Space Station. Eight of them are equipped with the software developed at EPFL as part of the Swisscube project. (EPFL = École Polytechnique Fédérale de Lausanne).


Image above: The SwissCube, a satellite designed and made by students, was sent to space seven years ago. Image Credit: EPFL.

Code name: QB50. This European research program, launched in early 2016, aimed at deploying 50 miniaturized satellites - the CubeSats - into the Earth's orbit. Their mission is to observe and measure the "thermosphere", between 100 and 600 km above the earth's surface.

Research institutes from as many as 23 countries are participating in it, and since Monday, the International Space Station (ISS) has expelled the results of their work, the Federal Polytechnic said in a statement.

The controls

Seven years ago, EPFL itself sent SwissCube, the first Swiss satellite, designed and produced by students. If the school is not on the trip this time, it is, in a way, in command of eight of the 28 satellites that have joined the orbit this week.

"We have developed a control software - simply called Satellite Control System (SCS) - particularly lightweight and robust," says Muriel Richard, EPFL's Space Engineering Center (eSpace).

Computer code

This software allows you to encode the instructions you want to send to the satellite, to broadcast them when the satellite is flying over a base station, and then to receive feedback in a safe and automated way.


Image above: A pair of CubeSats, with the Earth's limb in the background, moments after being ejected from a small satellite deployer outside of the International Space Station's Kibo laboratory module on Wednesday, May 16, 2017. The tiny shoebox-sized satellites will orbit Earth observing the Earth’s upper atmosphere and interstellar radiation left over from the Big Bang. Over a dozen CubeSats were ejected into Earth orbit this week outside the Kibo module to study Earth and space phenomena for the next one to two years. Image Credit: NASA.

Eight organizations from seven countries (Turkey, Taiwan, South Korea, Israel, Spain, Ukraine and China) have trusted the work of Swiss developers. They adapted according to their needs the computer code created at the EPFL and distributed in the open source mode.

Prototypes

"It's extremely positive and stimulating for our work," says Muriel Richard. The scientist points out that the software can also be used to control larger satellites.

It will be used in particular in the framework of the CleanSpace One project, a satellite that will have the task of de-orbiting Swisscube so that it does not become an additional "space debris". As for the deployment next year of the first two prototypes of a constellation of 60 nanosatellites, organized by ELSE, an EPFL start-up.

Related articles:

CubeSats Deployed Outside Station's Kibo Lab Module & Researches aboard the Station
http://orbiterchspacenews.blogspot.ch/2017/05/cubesats-deployed-outside-stations-kibo.html

Cleaning up Earth's orbit: A Swiss satellite tackles space debris
http://orbiterchspacenews.blogspot.ch/2012/02/cleaning-up-earths-orbit-swiss.html

For more information about EPFL - Swiss Space Center: http://space.epfl.ch/

Images (mentioned), Text, Credits: ATS/EPFL/Orbiter.ch Aerospace/Roland Berga.

Best regards, Orbiter.ch

vendredi 19 mai 2017

200th spacewalk upgrades Alpha Magnetic Spectrometer














CERN - European Organization for Nuclear Research logo / NASA - AMS-02 Mission patch.

May 19, 2017


Image above: Astronaut Peggy Whitson during the 200th spacewalk from the International Space Station (Image credit: NASA).

The 200th spacewalk at the International Space Station (ISS) included a new installation on the Alpha Magnetic Spectrometer (AMS) – a particle-physics detector that was assembled at CERN.

On 12 May, Commander Peggy Whitson and Flight Engineer Jack Fischer of NASA conducted the four-hour spacewalk, while ESA astronaut Thomas Pesquet stayed inside the ISS to drive the station arm that positions the two astronauts.

One of their tasks involved replacing a cable with a bus terminator – a type of connector – to carry data between AMS and the space shuttle. During the spacewalk, the AMS team stationed at CERN in the experiment’s Payload and Operations Control Centre (POCC), were able to check that the bus terminator was properly functioning. This connection will be used from 2018, when a new thermal cooling system for the AMS silicon tracker is put into place.

The AMS cooling pump system was developed by the collaboration at CERN, and a similar system is now also used by some of the LHC experiments to cool their trackers. Despite only needing one pump, AMS was flown to space with four. Now, three of the four pumps are no longer functioning and so multiple spacewalks are planned for 2018 to replace these with a new cooling system, which would extend the life of AMS in space by 12 years.

Alpha Magnetic Spectrometer (AMS) on ISS. Image Credit: NASA

AMS was launched in 2011 on the penultimate flight of the Space Shuttle and has been collecting data during the last six years. It is a particle-physics detector looking for dark matter, antimatter and missing matter and also performs precision measurements of cosmic rays. It reached the milestone of recording 100 billion cosmic ray events on 8 May.

Note:

CERN, the European Organization for Nuclear Research, is one of the world’s largest and most respected centres for scientific research. Its business is fundamental physics, finding out what the Universe is made of and how it works. At CERN, the world’s largest and most complex scientific instruments are used to study the basic constituents of matter — the fundamental particles. By studying what happens when these particles collide, physicists learn about the laws of Nature.

The instruments used at CERN are particle accelerators and detectors. Accelerators boost beams of particles to high energies before they are made to collide with each other or with stationary targets. Detectors observe and record the results of these collisions.

Founded in 1954, the CERN Laboratory sits astride the Franco–Swiss border near Geneva. It was one of Europe’s first joint ventures and now has 22 Member States.

Related article:

200th Station Spacewalk Comes to an End
http://orbiterchspacenews.blogspot.ch/2017/05/200th-station-spacewalk-comes-to-end.html

Related links:

Alpha Magnetic Spectrometer (AMS): http://home.cern/about/experiments/ams

LHC experiments: http://home.cern/about/experiments

For more information about European Organization for Nuclear Research (CERN), Visit: http://home.cern/

Images (mentioned), Text, Credits: CERN/Paola Catapano.

Greetings, Orbiter.ch

CubeSats Deployed Outside Station's Kibo Lab Module & Researches aboard the Station












ISS - Expedition 51 Mission patch.

May 19, 2017


A pair of CubeSats, with the Earth's limb in the background, moments after being ejected from a small satellite deployer outside of the International Space Station's Kibo laboratory module on Wednesday, May 16, 2017. The tiny shoebox-sized satellites will orbit Earth observing the Earth’s upper atmosphere and interstellar radiation left over from the Big Bang. Over a dozen CubeSats were ejected into Earth orbit this week outside the Kibo module to study Earth and space phenomena for the next one to two years.  Image Credit: NASA.

video
Space to Ground: A Fleet of CUBESATS: 05/19/2017

Expedition 51 is wrapping up a week of ongoing research into how living in space affects an astronaut’s brain and vision. The International Space Station also boosted its orbit ahead of crew and cargo missions coming and going in June.

NASA astronaut Jack Fischer strapped himself in a device for the NeuroMapping experiment today that tests how the human brain structure and function changes in space. The study also compares brain changes, motor control and multi-tasking when an astronaut is in a free-floating state.

Doctors have noted how microgravity causes a headward fluid shift of blood and other body fluids. As a result, astronaut’s experience face-swelling and elevated head pressure.


Image above: This week, Commander Peggy Whitson evaluated Flight Engineer Jack Fischer’s calf and thigh for the Sprint study to assess spaceflight-induced changes in muscle volume. Doctors are evaluating the effectiveness of high intensity, low volume exercise to keep astronauts healthy in space. Image Credit: NASA.

The Fluid Shifts study is exploring a way to offset the upward flow using unique suit known as the Lower Body Negative Pressure suit. Commander Peggy Whitson wore the suit today and underwent ultrasound scans and eye checks to help scientists determine its effectiveness against lasting changes in vision and eye damage.

The space station is orbiting a little higher above Earth this week to prepare for the departure of two crew members on June 2. The SpaceX Dragon is due to launch June 1 and arrive at the station three days later. Mission managers are working a plan dependent on an on-time Dragon launch that could see the Orbital ATK Cygnus cargo craft depart in early June or mid-July.

Related links:

CubeSats: http://www.nasa.gov/cubesats/

Small Satellite Missions: http://www.nasa.gov/mission_pages/smallsats

NeuroMapping: https://www.nasa.gov/mission_pages/station/research/experiments/1007.html

Fluid Shifts: https://www.nasa.gov/mission_pages/station/research/experiments/1257.html

Expedition 51: https://www.nasa.gov/mission_pages/station/expeditions/expedition51/index.html

SpaceX Dragon: https://www.nasa.gov/spacex

Orbital ATK Cygnus: https://www.nasa.gov/orbitalatk

International Space Station (ISS): https://www.nasa.gov/mission_pages/station/main/index.html

Images (mentioned), Video, Text, Credits: NASA/Mark Garcia.

Best regards, Orbiter.ch

SpaceX Dragon to Deliver Research to Space Station















ISS - International Space Station patch / SpaceX - CRS-11 Mission patch.

May 19, 2017

SpaceX is scheduled to launch its Dragon spacecraft for its eleventh commercial resupply mission to the International Space Station June 1 from NASA’s Kennedy Space Center’s historic pad 39A. Dragon will lift into orbit atop the Falcon 9 rocket carrying crew supplies, equipment and scientific research to crewmembers living aboard the station.


Image above: The explosion of a massive star blazes, or a supernova, observed by the NASA Hubble Space Telescope. The bright spot at top right of the image is a stellar blast, called a supernova. The Neutron Star Interior Composition Explored (NICER) investigation, affixed to the exterior of the International Space Station, studies the physics of these stars, providing new insight into their nature and behavior. Image Credits: NASA, ESA, A.V. Filippenko (University of California, Berkeley), P. Challis (Harvard-Smithsonian Center for Astrophysics), et al.

The flight will deliver investigations and facilities that study neutron stars, osteoporosis, solar panels, tools for Earth-observation, and more. Here are some highlights of research that will be delivered to the orbiting laboratory:

New solar panels test concept for more efficient power source

Solar panels are an efficient way to generate power, but they can be delicate and large when used to power a spacecraft or satellites. They are often tightly stowed for launch and then must be unfolded when the spacecraft reaches orbit. The Roll-Out Solar Array (ROSA), is a solar panel concept that is lighter and stores more compactly for launch than the rigid solar panels currently in use. ROSA has solar cells on a flexible blanket and a framework that rolls out like a tape measure.  The technology for ROSA is one of two new solar panel concepts that were developed by the Solar Electric Propulsion project, sponsored by NASA’s Space Technology Mission Directorate.


Image above: The Roll-Out Solar Array (ROSA) is a new, more compact solar panel that will snap open in space, a favorable design over the rigid solar panels currently in use, pictured above. Image Credit: NASA.

The new solar panel concepts are intended to provide power to electric thrusters for use on NASA’s future space vehicles for operations near the Moon and for missions to Mars and beyond. They might also be used to power future satellites in Earth orbit, including more powerful commercial communications satellites. The demonstration of the deployment of ROSA on the space station is sponsored by the Air Force Research Laboratory.

Investigation studies composition of neutron stars
 
video
What is a Neutron Star?

Neutron stars, the glowing cinders left behind when massive stars explode as supernovas, are the densest objects in the universe, and contain exotic states of matter that are impossible to replicate in any ground lab. These stars are called “pulsars” because of the unique way they emit light – in a beam similar to a lighthouse beacon. As the star spins, the light sweeps past us, making it appear as if the star is pulsing. The Neutron Star Interior Composition Explored (NICER) payload, affixed to the exterior of the space station, studies the physics of these stars, providing new insight into their nature and behavior.


Animation above: The Neutron Star Interior Composition Explored (NICER) payload, affixed to the exterior of the space station, will study the physics of neutron stars, providing new insight into their nature and behavior. Image Credit: NASA.

Neutron stars emit X-ray radiation, enabling the NICER technology to observe and record information about its structure, dynamics and energetics. In addition to studying the matter within the neutron stars, the payload also includes a technology demonstration called the Station Explorer for X-ray Timing and Navigation Technology (SEXTANT), which will help researchers to develop a pulsar-based, space navigation system. Pulsar navigation could work similarly to GPS on Earth, providing precise position for spacecraft throughout the solar system.

Investigation studies effect of new drug on osteoporosis

When people and animals spend extended periods of time in space, they experience bone density loss, or osteoporosis. In-flight countermeasures, such as exercise, prevent it from getting worse, but there isn’t a therapy on Earth or in space that can restore bone that is already lost. The Systemic Therapy of NELL-1 for osteoporosis (Rodent Research-5) investigation tests a new drug that can both rebuild bone and block further bone loss, improving health for crew members.

 ISS - International Space Station. Animation Credit: NASA

Exposure to microgravity creates a rapid change in bone health, similar to what happens in certain bone-wasting diseases, during extended bed rest and during the normal aging process. The results from this ISS National Laboratory-sponsored investigation build on previous research also supported by the National Institutes for Health and could lead to new drugs for treating bone density loss in millions of people on Earth.

Research seeks to understand the heart of the matter

Exposure to reduced gravity environments can result in cardiovascular changes such as fluid shifts, changes in total blood volume, heartbeat and heart rhythm irregularities, and diminished aerobic capacity. The Fruit Fly Lab-02 study will use the fruit fly (Drosophila melanogaster) to better understand the underlying mechanisms responsible for the adverse effects of prolonged exposure to microgravity on the heart. Flies are smaller, with a well-known genetic make-up, and very rapid aging that make them good models for studying heart function. This experiment will help to develop a microgravity heart model in the fruit fly. Such a model could significantly advance the study of spaceflight effects on the cardiovascular system and facilitate the development of countermeasures to prevent the adverse effects of space travel on astronauts.

 SpaceX Dragon heading the International Space Station. Animation Credit: NASA

Investigation shapes the way humans survive in space

Currently, the life-support systems aboard the space station require special equipment to separate liquids and gases. This technology utilizes rotating and moving parts that, if broken or otherwise compromised, could cause contamination aboard the station. The Capillary Structures investigation studies a new method of water recycling and carbon dioxide removal using structures designed in specific shapes to manage fluid and gas mixtures. As opposed to the expensive, machine-based processes currently in use aboard the station, the Capillary Structures equipment is made up of small, 3-D printed geometric shapes of varying sizes that clip into place.

Using time lapse photography, on-ground research teams will observe how liquids evaporate from these capillary structures, testing the effectiveness of the varying parameters. Results from the investigation could lead to the development of new processes that are simple, trustworthy, and highly reliable in the case of an electrical failure or other malfunction.

Facility provides platform for Earth-observation tools

Orbiting approximately 250 miles above the Earth’s surface, the space station provides views of the Earth below like no other location can provide. The Multiple User System for Earth Sensing (MUSES) facility, developed by Teledyne Brown Engineering, hosts Earth-viewing instruments such as high-resolution digital cameras, hyperspectral imagers, and provides precision pointing and other accommodations.


Image above: Hurricane Edouard, as observed by NASA astronaut Reid Wiseman during Expedition 41. The MUSES platform will host Earth-viewing instruments such as high-resolution digital cameras and provide information like disaster relief information. Image Credit: NASA.

This National Lab-sponsored investigation can produce data to be used for maritime domain awareness, agricultural awareness, food security, disaster response, air quality, oil and gas exploration and fire detection.


Image above: MUSES hosts earth-viewing tools such as high-resolution digital cameras and hyperspectral imagers and provides precision pointing and other accommodations. It hosts up to four instruments at the same time, and offers the ability to change, upgrade, and robotically service those instruments. Image Credits: Teledyne Brown Engineering.

These investigations will join many other investigations currently happening aboard the space station. Follow https://twitter.com/ISS_Research for more information about the science happening on station.

Related links:

Roll-Out Solar Array (ROSA): https://www.nasa.gov/mission_pages/station/research/experiments/2139.html

Neutron Star Interior Composition Explored (NICER): https://www.nasa.gov/nicer

Station Explorer for X-ray Timing and Navigation Technology (SEXTANT): https://gameon.nasa.gov/projects/deep-space-x-ray-navigation-and-communication/

Rodent Research-5: https://www.nasa.gov/mission_pages/station/research/experiments/2283.html

ISS National Laboratory: http://www.iss-casis.org/

Fruit Fly Lab-02: https://www.nasa.gov/mission_pages/station/research/experiments/1919.html

Capillary Structures: https://www.nasa.gov/mission_pages/station/research/experiments/2364.html

Commercial Resupply: http://www.nasa.gov/mission_pages/station/structure/launch/index.html

Space Station Research and Technology: https://www.nasa.gov/mission_pages/station/research/index.html

International Space Station (ISS): https://www.nasa.gov/mission_pages/station/main/index.html

Images (mentioned), Animations (mentioned), Video, Text, Credits: NASA/Kristine Rainey/JSC/Jenny Howard/International Space Station Program Science Office.

Best regards, Orbiter.ch