An international team of planet hunters has found four new planets orbiting two nearby stars that are very similar to the Sun. These discoveries point the way to the detection of potentially habitable ...

NASA has announced the discovery of an Earth-like planet orbiting a Sun-like star that shares several other similarities with ...

Astronomers have long wondered why planets orbiting two stars like the iconic Tatooine in Star Wars are so rare. You would expect them to be everywhere, really. Most stars form with planets, and a ...

Our planet whirls around the sun in an ellipse, rather than a circle. On Thursday the planet reached its farthest point from its star, known as aphelion. By Katrina Miller This article was originally ...

The planets within our solar system are in constant motion in their orbits and as they spin on their axes. All planets in our solar system revolve around the Sun. But the time they take to complete ...

Earth’s fate rests on a coin flip. In 5 billion years, our sun will balloon into a red giant star. Whether Earth survives is an “open question,” Melinda Soares-Furtado, an astrophysicist at the ...

Stargazing in February: Mercury – a planet of extremes - It may look like the Moon, but Mercury has many more secrets, Nigel ...