Learn what planet rains molten iron and which planet has two moons like Tatooine in Star Wars.

It's one of the most basic, and maddening, questions ever posed by scientists, but we're now one step closer to answering it. A new set of data released by NASA's Kepler mission catalogs 219 ...

The researchers used data collected by NASA's Kepler telescope, which monitored 150,000 stars and measured dips in their brightness caused by transiting planets to discover thousands of exoplanets.

IT'S been nearly 40 years since the first planet outside of our Solar System was discovered. Since then, more than 5,800 weird and wonderful worlds across 4,300 planetary systems have been located.

"Reviewing the data was a meticulous process that required careful inspection of all data products to ensure the ... we've been able to learn about the orbits of planets around other stars using the ...

When we are talking about astronomy, it is hard to not mention Johannes Kepler. A German astronomer and mathematician, Kepler was one of the central figures in the scientific revolution of the ...

Lots of us look up at the night sky with wonderment, asking how humans are able to explore the universe. Tracy Drain, a ...

In October 1995, after decades of serious effort, astronomers announced the first discovery of a planet orbiting a Sun-like star. Until then, the few planets known to exist beyond the solar system ...

A combination of cosmic processes shapes the formation of one of the most common types of planets outside of our solar system ...

If you’re going to set a sci-fi movie on an alien planet, it’s a nice bonus if that planet actually exists. Or, at least, is inspired by one that actually exists. In the new film Ash, director ...