Astronomers recently detected a stray quasi-moon in our planet’s orbit, but it's hardly the first stowaway to hang out around ...

For the first time in more than five years, humanity has launched a mission to Mars — but it won't be arriving at the Red ...

Astronomers using the European Space Agency's XMM-Newton space observatory and the LOFAR telescope have definitively spotted ...

At a young age, we're told how the sun warms Earth and makes life possible. That idea sticks with most of us for life. But ...

Look low on the southwestern horizon at sunset on Nov. 12 for a chance to see swift Mercury close to the red light of Mars in ...

The Sun, our nearest celestial neighbor, is undeniably a star, not a planet, as centuries of astronomical observations have ...

Researchers analyzed nearly half a million nearby star systems to understand how giant planets fare as their stars expand ...

Blue Origin, owned by Jeff Bezos, plans to challenge SpaceX with the powerful, partially reusable New Glenn rocket.

Explore the evolving rare earth hypothesis, highlighting new findings on habitability and the conditions for complex life on ...

Using data from NASA’s TESS mission, scientists can estimate the size (radius) of potential planets orbiting distant stars. However, to verify that these objects are truly planets and not low-mass ...

The New Glenn rocket lifted off about 45 minutes later than scheduled due to an unplanned hold with 20 seconds to go.

A new survey of 500,000 stars finds only 0.28% host close-in giants, showing how aging Sun-like stars drag their planets to destruction.