The war in Iran is exposing the world’s reliance on fragile fossil fuel routes, lending urgency to calls for hastening the ...

A recent SETI Institute study suggests that space weather could blur and weaken extraterrestrial radio signals long before they reach us.

WHEN you read the news these days, it’s easy to imagine that Earth is the worst planet in the Solar System. Sure, we are told ...

President Donald Trump and his NASA administrator are reviving the Pluto debate again — apparently at the urging of “Star ...

Like the lead character of “Project Hail Mary,” some scientists are proposing ways that life might exist beyond a star’s “habitable zone,” often considered the gold standard of potential livability ...

Astronomers have discovered a strange new kind of planet beyond our solar system—one that may be covered by a vast, long-lasting ocean of molten rock and filled with sulfur deep inside. The planet, ...

A bizarre, ultra-light planet is cloaked in such a thick haze that even JWST can’t reveal its composition. Its unusual size and orbit are forcing scientists to rethink how planets form.

Life on Earth is a precious thing, especially given what astronomers know about the visible universe. Although researchers have so far identified over 6,000 exoplanets beyond our solar system, only a ...

Out of the 6,000 known exoplanets, it's these rocky worlds that are most worthy of attention in the search for life beyond ...

A hazy, ultra-light “super-puff” planet, Kepler-51d, is hiding its secrets and challenging how scientists understand planet formation.

Located just 35 light-years away, this world is roughly 1.6 times the size of Earth. But don’t call it a twin. It’s a scorching, pungent orb wrapped in an atmosphere of hydrogen and sulfur, perched ...

Greek mythology has given a name to a great many objects in our solar system. But perhaps one of the least well understood ...