
Visions of the Future: HD 40307g
NASA/JPL-Caltech, 2016
Poster for a fictional space journey to exoplanet planet HD 40307 g. Inscript: «Experience the gravity of HD 40307 g, a super Earth.» / 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. It is one of the space-tourism posters NASA's Jet Propulsion Laboratory released to the public.





