NASA Astronomy Picture of the Day 2016 August 16 Five Planets and the Moon over Australia It is not a coincidence that planets line up. That’s because all of the planets orbit the Sun in (nearly) a single sheet called the plane of the ecliptic.
All Of Earth's Water In A Single Sphere This picture shows the size of a sphere that would contain all of Earth's water in comparison to the size of the Earth. The diameter would be roughly the distance from Salt Lake City, Utah to Topeka, Kansas.
Milky Way. Every star we see in the sky is part of the Milky Way, but a brighter center exists some light-years away. The Milky Way is about light-years in diameter and contains 200 to 400 billion stars.
Super-massive black holes discovered by Indian scientist