A decades-old astronomical mystery has finally been solved—an enigmatic X-ray signal emanating from deep space turns out to ...

Astronomers have uncovered new evidence that Jupiter’s moon Callisto likely harbors a massive underground ocean, potentially ...

Previous examinations using ground-based tools as well as the Hubble and Spitzer space telescopes indicated SIMP 0136 was ...

"We might have finally found the cause of a mystery that's lasted over 40 years," said researcher Sandino Estrada-Dorado.

Astronomers using the James Webb Space Telescope have discovered complex atmospheric shifts in SIMP 0136, a free-floating ...

NASA's Juno spacecraft swooped in for a close look at a massive thunderstorm on Jupiter, revealing that it may have ...

NASA’s twin Voyager probes, which launched in 1977, are the longest-running missions to send data home. But as their power ...

Dust off your old telescope on a clear night and look up. If you find Jupiter, you’ll likely see four small dots to the side ...

The dividing line between gas giant planets and failed stars is blurry at best. The isolated planetary-mass object SIMP ...

Seven planets are on display in the night sky at the end of February, but some will be harder to spot than others. Here’s ...

"We found that some comets in the inner Oort cloud form a long-lasting spiral structure." Spirals are a repeating theme in ...

NASA astronomers have been continuing to monitor the trajectory of asteroid 2024 YR4. The initial calculations suggested a 1.3% probability of an Earth impact event, which temporarily increased to 3.1 ...