"Observations of sun-like giant stars currently point towards Earth's survival, but we need better observations before we can ...

There are sunsets on other planets even more spectacular than the ones on Earth. What if we could see not just one, but two ...

Where does the solar system end and interstellar space begin? That's a question scientists have been working to answer using ...

NASA's exoplanet-hunting spacecraft TESS has a new method for detecting worlds beyond the solar system, and it is thanks to ...

Interstellar comet 3I/ATLAS carries isotopic ratios entirely outside the Solar System range, ESO’s Very Large Telescope has ...

North America’s celestial highlights for the week ahead, which also apply to mid-northern latitudes in the northern hemisphere. This week: bright planets at dusk and dawn ...

One of the great ironies of the year is the fact that in the heat of the summer in the northern hemisphere, the Earth is much ...

Astronomers have spent decades mapping the Milky Way, but the galaxy is too vast for anyone to see its full shape from the inside. Distances to its outer spiral arms have therefore relied heavily on ...

The Milky Way’s farthest spiral arms have long been sketched more from motion than measurement. Now three violent explosions ...

A giant planet circling a dead star should not be there. That was the puzzle hanging over WD 1856 b ever since astronomers ...

Of all the strange worlds in our Milky Way galaxy, some of the most mysterious are those hanging around white dwarf stars.

A comet screaming in from another star system carried alien ice ratios never seen before. What scientists found inside its spinning nucleus is reshaping how we picture worlds beyond our sun.