Universe

An astronomical unit (AU) is a unit of measurement used in astronomy to describe distances within our solar system. Instead of using kilometers or miles, which would result in extremely…

When astronauts look out into space, they see a black sky, even though the Sun is shining brightly. This might seem strange because on Earth, the daytime sky is blue.…

The question of whether life exists beyond Earth is one of humanity’s greatest mysteries. Scientists approach this search using a combination of astronomy, biology, and advanced technology. While no evidence…

When we observe planets, stars, and many moons, one thing stands out—they are mostly round. Unlike small asteroids or comets that often have irregular shapes, larger celestial bodies take on…