(CNN) — A tiny spacecraft with big implications for lunar exploration is ready to launch. The miniscule satellite, called a CubeSat, is about the size of a microwave oven and weighs just 55 pounds (25 ...

Astronomers have detected an Earth-size planet candidate orbiting a nearby star once a year, making it a promising target for future studies.

32,256 people played the daily Crossword recently. Can you solve it faster than others?32,256 people played the daily Crossword recently. Can you solve it faster than others?

Using one of the world's largest telescopes, a Lawrence Livermore team and international collaborators have tracked the orbit of a planet at least four times the size of Jupiter. The scientists were ...