Try stargazing. Need a new idea to keep kids entertained? Try stargazing. Free learning activities and videos about the solar system Free learning activities and videos about the solar system Free ...

Asteroids aren’t all the same. Some are rich in metals like nickel and iron, others are made of carbon-rich materials, and some are stony. Scientists classify them into groups like C-type ...

NASA discovered and later confirmed the first interstellar object to enter our solar system. It wasn't aliens. But artist ...

With a radius of 2,106 miles, Mars is the seventh largest planet in our solar system and about half the diameter of Earth. Its surface gravity is 37.5 percent of Earth’s. Mars rotates on its ...