vendredi 21 octobre 2016

Hubble Spins a Web Into a Giant Red Spider Nebula

NASA - Hubble Space Telescope patch.

Oct. 21, 2016

Huge waves are sculpted in this two-lobed nebula called the Red Spider Nebula, located some 3,000 light-years away in the constellation of Sagittarius. This warm planetary nebula harbors one of the hottest stars known and its powerful stellar winds generate waves 100 billion kilometers (62.4 billion miles) high. The waves are caused by supersonic shocks, formed when the local gas is compressed and heated in front of the rapidly expanding lobes. The atoms caught in the shock emit the spectacular radiation seen in this image.

Hubble orbiting Earth

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Text Credits: ESA (European Space Agency)/NASA/Rob Garner/Image, Video, Credits: ESA (European Space Agency)/Garrelt Mellema (Leiden University, the Netherlands).


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