Bright patches of light, known as sun dogs, appear when sunlight bends through hexagonal ice crystals in high-altitude clouds ...

The interstellar comet 3I/ATLAS has just done something no visitor from another star system has ever been caught doing: it ...

New images taken by the Hubble Space Telescope and a Jupiter-bound mission showcase interstellar comet 3I/ATLAS ahead of its ...

Interstellar comet 3I/ATLAS is now visible in the UK night sky! The third confirmed alien visitor, whose chemical fingerprint is 'older than our Sun', makes its unrepeatable, 221,000 km/h flyby. Get ...

Interstellar comet 3I/ATLAS is captured over Egypt’s Black Desert as it returns to view after its solar passage. Learn how the image was taken and how to observe it ...

The strange halo appeared on December 3 over the town of Kaleida, where photographer Sheila Wiwchar spotted the phenomenon ...

XRISM's Xtend telescope records the first X-ray glow from interstellar comet 3I/ATLAS, revealing how alien material interacts ...

A viral tweet claims new XRISM images show interstellar comet 3I/ATLAS glowing like a spaceship engine, fuelling speculation ...

Barreling into the solar system at more than 137,000 miles an hour, the comet 3I/ATLAS is only the third confirmed ...

An Earth-directed coronal mass ejection could trigger a G3-rated geomagnetic storm early on Tuesday, Dec. 9, with the lower ...

In reality, a green rim is there at every sunset. It's just usually so thin, and so brief (a second or two), that our eyes ...