Several planets will line up shortly after sunset, on February 28, during a planetary alignment. Six planets will be visible ...

The discovery is just the latest to come from the asteroid sample, which dates back to the dawn of the solar system.

Mercury has long been cast as the solar system’s burnt-out rock, a relic too small and too close to the Sun to hold many ...

Gas giants are enormous planets made primarily of hydrogen and helium. They may contain dense central cores, but unlike Earth, they do not have solid ...

A distant star system with four super-sized gas giants has revealed a surprise. Thanks to JWST’s powerful vision, astronomers detected sulfur in their atmospheres — a chemical clue that they formed ...

For millions of years, a frozen wanderer drifted between the stars before slipping into our solar system as 3I/ATLAS—only the ...

The planetary parade is happening right now, so any day is good for spotting it. If you want some particularly exciting dates, hope for good weather on March 7, when Venus, Saturn, and Neptune will be ...

But as much as it’s easy to think all they need is oxygen and water for life to flourish, scientists have discovered that isn ...

After the Feb. 17 'ring of fire', the next annular solar eclipse will occur on Feb. 6, 2027, and will be visible from locations in Chile, Argentina, Uruguay, Brazil, Cote d'Ivoire, Ghana, Togo, Benin ...

Earth’s habitability may trace back to a precise chemical balance during its formation, one that kept life-critical elements from disappearing into the core or drifting into space.

As next-generation telescopes map this outer frontier, astronomers are bracing for discoveries that could reveal hidden planets, strange structures, and clues to the solar system’s chaotic youth.