How much of the solar system's mass is in the Sun?
The Sun contains about 99.8% of all the mass in our solar system.
Reference: NASA
The Sun contains about 99.8% of all the mass in our solar system.
Galileo's telescope wasn't strong enough to show Saturn's rings clearly, so he thought the planet had "ears" or two large moons on either side.
Mercury is so dense that iron can float on it.