Callisto, the third largest moon in the entire solar system, orbits Jupiter from about 1.2 million miles away. The rocky ...

In 1920, astronomers Harlow Shapley and Heber Curtis held a Great Debate. Shapley argued that the spiral nebulae were small ...

Galileo precedes today’s physicists by many generations, but his work underscores the interplay of intellect and observation ...

The presence of an ocean leaves open the possibility that it could host life. Another nearby moon, Europa, is also considered ...

Mathematical equations have been the greatest tool to explain the world around us and the key to advance our knowledge about ...

But it won't be a star that will be keeping the moon company on this early winter's evening, but the largest planet in the solar system: Jupiter. At mid-twilight, roughly 45 minut ...

GALILEO: Good morning, guys, I hope you're having a lovely day. I am Galileo Galilei, a scientist from Italy and I am the man who is making some exciting discoveries around force and I am here ...

Here’s a look at the life of renowned theoretical physicist, cosmologist, astronomer and mathematician, Stephen Hawking.