A new study by Rice University researchers Sho Shibata and Andre Izidoro presents a compelling new model for the formation of ...

Astronomers have been looking for exoplanets orbiting Barnard's Star, the nearest solitary star to Earth at just 5.96 ...

Another finding was how dramatically the planets varied in brightness over just three years. The team discovered that PDS 70 ...

Seven planets ... the Earth's sky. A seven-planet alignment will take place Friday and stargazers won't want to miss the rare spectacle. While NASA says it's unlikely that all the planets will be ...

A new world has just been found orbiting a Sun-like star only 20 light-years away, and it could be one of the most promising ...

With a sun more than 4.5 billion years old, our solar system is considered "middle-aged," and the pictures of what it might ...

Seven planets will line up for a rare "planetary parade" today (Feb. 28) and you can watch it live online, beginning at 12:00 p.m. ET (1700 GMT).