Mars is about to receive a double dose of attention. This weekend, a pair of identical NASA satellites will launch together ...

Is a sun a star or a planet? While science now agrees the sun is a star, new telescopes may soon challenge how we define ...

Using NASA's Transiting Exoplanet Survey Satellite (TESS), astronomers have discovered that aging stars in their so-called ...

That’s what it took to save NASA’s ESCAPADE mission from a lengthy delay, and possible cancellation, after its rocket wasn’t ready to send it toward Mars during its appointed launch window last year.

Aging stars may be destroying the giant planets orbiting closest to them, according to a new study by astronomers at UCL and ...

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

Our Moon is slowly drifting away from Earth, not just due to tidal friction as previously thought. New research suggests ...

This one was full of space paraphernalia, astronaut dolls, and NASA shirts. But what caught my eye were the dog plushies in ...

The ESCAPADE mission, short for Escape and Plasma Acceleration and Dynamics Explorers, is the first dual-satellite mission to ...

The Earth's Moon is its only one, but scientists recently discovered a new celestial body that will be staying near the planet for the next several decades.

When stars like the Sun run out of hydrogen in their cores, fusion slows and the outer layers balloon outward. The star can ...

There are now over 10,000 satellites in orbit, more than at any point in history, and this growing number is starting to ...