space
Answers are hidden until you reveal them.
What is Jupiter made of?
Our guess
Mostly gas, possibly with mercury vapors and sulfur, and maybe a small rocky core.
Mostly gas, possibly with mercury vapors and sulfur, and maybe a small rocky core.
Reveal the answer
The answer
Mostly hydrogen and helium, probably with a solid core of heavy elements. A swirling liquid metal ocean creates the strongest magnetic field in the solar system. It has 67 moons, 53 of them named.
Mostly hydrogen and helium, probably with a solid core of heavy elements. A swirling liquid metal ocean creates the strongest magnetic field in the solar system. It has 67 moons, 53 of them named.
Verdict partly
Where did all of Earth's water come from?
Episode 94: Impact Hypothesis (01:16)
Our guess
Volcanic outgassing as the planet cooled, building an atmosphere, plus water brought by comets and meteors.
Volcanic outgassing as the planet cooled, building an atmosphere, plus water brought by comets and meteors.
Reveal the answer
The answer
Not settled, but the leading idea is that much of it arrived from asteroids and comets (the deuterium-to-hydrogen ratio matches asteroids), possibly including the giant impact that formed the Moon. Outgassing from the early magma ocean contributed, and an atmosphere was needed to hold it.
Not settled, but the leading idea is that much of it arrived from asteroids and comets (the deuterium-to-hydrogen ratio matches asteroids), possibly including the giant impact that formed the Moon. Outgassing from the early magma ocean contributed, and an atmosphere was needed to hold it.
Verdict right