Artwork Title: NASA Retro Space Travel Illustrated Poster - Gravity HD 40307g - Artist Name: NASA Jet Propulsion Laboratory (JPL)

NASA Retro Space Travel Illustrated Poster - Gravity HD 40307g

NASA Jet Propulsion Laboratory (JPL)

Twice as big in volume as the Earth, HD 40307g straddles the line between "Super-Earth" and "mini-Neptune" and scientists aren't sure if it has a rocky surface or one that's buried beneath thick layers of gas and ice. One thing is certain though: at eight time the Earth's mass, its gravitational pull is much, much stronger. (https://www.jpl.nasa.gov/visions-of-the-future/)
gravityposterspace travelillustration

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