Artist's impression of gas streaming from GJ 3470b

This artist's impression shows a giant cloud of hydrogen streaming off a warm, Neptune-sized planet just 97 light-years from Earth. The exoplanet is tiny compared to its star, a red dwarf named GJ 3470. The star's intense radiation is heating the hydrogen in the planet's upper atmosphere to a point where it escapes into space. The alien world is losing hydrogen at a rate 100 times faster than a previously observed warm Neptune whose atmosphere is also evaporating away.

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Credit:

NASA, ESA, and D. Player (STScI)

About the Image

NASA press release
NASA caption
Id:opo1852a
Type:Artwork
Release date:17 December 2018, 15:51
Size:3840 x 2160 px

About the Object

Name:Gliese 3470b
Type:Milky Way : Planet
Distance:97 light years
Category:Exoplanets

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