A rocky, Earth-size planet located in our Milky Way galaxy may have an atmosphere around it, according to new research, ...

Astronomers have discovered the raw ingredients of planets orbiting two infant stars, offering a glimpse into how new worlds ...

Mars is known for its barren desert landscape and dry climate. But two recent studies in the journals Nature and Science go ...

It’s often said—we said it again ourselves just last week, in fact—that our own Solar System isn’t as typical as scientists once imagined. We’ve got four small, close-in, rocky planets (Mercury ...

Studying the orbits of thousands of exoplanets shows that large planets tend to have elliptical orbits, while smaller planets tend to have more circular orbits. This split coincides with several other ...

Using data from NASA’s retired InSight lander, two separate teams of researchers found evidence of a sluggish Martian mantle ...

NASA is working on finding landing sites for future moon astronauts. Part of the work includes thinking about how to prepare ...

ATLANTA — On most clear nights, you can catch a view of one or two planets in the night sky. Friday evening, seven planets will be aligned, briefly visible from Earth's perspective. Although the ...

One of the most fun things about any kind of fiction, video games included, is the potential to take us to new and different worlds. We often take our concept of normal life for granted here on Earth, ...