Scientists have known for many years that asteroids often follow planets, moving in the same orbit around the sun. These so-called "Trojan asteroids" have been spotted tagging alongside Jupiter, Mars, and Neptune.
Earth, however, was believed to be free of these celestial stalkers — until now. Astronomers from Athabasca University in Canada, using data from an infrared NASA telescope that's orbiting the Earth, discovered an asteroid tracking us from just 50 million miles away.
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Nasa has dropped its longstanding public commitment to land the first woman and person of color...
L ike many scientists, I came to the US as a young adult, driven by idealism...
Just over a day after blasting off, a SpaceX crew capsule arrived at the International Space...
