Congratulations. You found Jupiter. With its famous red spot, Jupiter is the
most massive planet in the solar system. (It is more than 300 times more
massive than the Earth.) Jupiter is a gas planet, which means it has no surface
to walk on. Jupiter's outer layers consist mostly of hydrogen and helium. The
planet has been visited by six spacecraft, the first one being Pioneer 10 in
1973.
OK, now that you've found and photographed Jupiter, it's time to look at the
other four planets nearby and see if any of them can support human life. The
planet you're looking for needs to have moderate temperatures and liquid water.
Your instruments are showing you the readings below. Which one might be
habitable?
Congratulations. You found Jupiter. With its famous red spot, Jupiter is the
most massive planet in the solar system. (It is more than 300 times more
massive than the Earth.) Jupiter is a gas planet, which means it has no surface
to walk on. Jupiter's outer layers consist mostly of hydrogen and helium. The
planet has been visited by six spacecraft, the first one being Pioneer 10 in
1973.