Comet 3I/ATLAS, the third confirmed interstellar visitor, is making its final exit from the solar system — and skywatchers ...

Water isn't just delivered to planets by comets and asteroids — it can also be forged as worlds form, a new study finds.

In the heart of the Milky Way is a black hole millions of times more massive than our sun, but does that mean we're destined ...

A new interstellar comet, 3I/ATLAS, is passing through our Solar System. This rare visitor comes from deep space, carrying ...

Four billion years ago, Mars’ fate was sealed deep within its core. When the planet’s once-vigorous magnetic dynamo sputtered ...

Do rooftop solar panels sound like a good deal? They could very well be, assuming you consider all the pros and cons before ...

Grist reports on red flags to watch for in door-to-door solar sales, including licensing issues, misleading claims, and ...

Astronomers say 3I/Atlas, the interstellar object passing through our solar system, has changed color again, raising new questions about its composition and behavior.

After briefly escaping from Earth's view during a (very) close approach to the sun on Oct. 30, Comet 3I/ATLAS can finally be ...

Dancing silently in Earth’s upper atmosphere, they form iridescent sheets of green and red (or sometimes blue and purple ... in these areas to see northern lights over the next several months, as the ...

For generations, the northern lights felt like something you had to chase across an ocean: Alaska if you were practical, ...