The word “planet” came from the ancient Greek words that mean “wandering star.” That makes sense, because for thousands of years, people have watched planets change position in the night sky — unlike ...

The ancient Greeks proved over 2,000 years ago that the Earth was round and figured out how big it was by using simple observations of the Sun. But how do people know this today? When you drop ...

Lonely Planet Kids - an imprint from Lonely Planet, the world's leading travel publisher - is pleased to introduce an impressive line-up of new children's books that aim to enhance learning, ...

Have you ever looked up on a clear night at the stars and noticed that some of them seemed to twinkle or dance? This twinkling is due to the Earth’s atmosphere. When light reaches Earth from a star, ...

Dr Rudi Kuhn does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond their ...

Add Yahoo as a preferred source to see more of our stories on Google. By Megan Rowling BARCELONA (Thomson Reuters Foundation) - Children must be given a direct role in making decisions on how to ...