This long-duration comet will make its closest approach to Earth this fall, before disappearing into the outer solar system ...

Astronomers have made an unexpected and groundbreaking discovery in our solar system—a ring system forming around Chiron, a ...

Analyses of its emissions using NASA’s Neil Gehrels Swift Observatory indicate that the interstellar comet probably has a ...

Astronomers are investigating a potential hidden planet, dubbed Planet Y, far beyond Neptune. Its gravitational pull is ...

Astronomers have detected one of the darkest objects ever seen at a record cosmic distance—only with the assistance of ...

Warm Jupiters are rewriting the rules of planet formation - showing eccentric orbits that stay strangely aligned with their ...

Scientists at Brazil’s Pico dos Dias Observatory have, for the first time, successfully observed the process of formation of ...

Blocks of frozen carbon dioxide sliding down Martian dunes may have carved the planet’s strange gullies, mimicking the work of living creatures.

From desert carvings to underwater ruins, these ancient structures are so advanced that experts still can’t agree on what ...

Since its arrival this summer, scientists have been racing to understand as much as possible about 3I/ATLAS, the third ...

From desert carvings to underwater ruins, these ancient structures are so advanced that experts still can’t agree on what ...

Earth's Dynamic Magnetic Fortress Our magnetosphere plays the role of gatekeeper, repelling unwanted energy that's harmful to ...