What is the biggest moon in the solar system?
That is a tricky question, which astronomers didn’t answer correctly until fairly recently. For a while, they thought the biggest […]
Who made the first map of the universe?
Maps of the stars are nearly as ancient as human culture itself; inscriptions describing the positions of stars and constellations
How big is the solar system?
The farthest known object orbiting our Sun is a ball of ice and rock unofficially called FarFarOut, which lies about
Is there a tenth planet in our solar system?
No. On August 23, 2006, the International Astronomical Union decided that the solar system contains only eight planets. Pluto, which