Usually, sunlight makes cometary gases glow green from diatomic carbon (C2) or blue from ionized carbon monoxide (CO+). With ...
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A near-miss asteroid shows how fragile Earth’s safety is
A July flyby of a massive asteroid went undetected until two days after it passed, raising urgent questions about planetary ...
On October 31, 2015, an asteroid shaped like a human skull flew by Earth. It arrived with excellent timing on Halloween, ...
On October 31, 2015, an asteroid shaped like a human skull flew by Earth. It arrived with excellent timing on Halloween, ...
A rare cosmic visitor, 3I/ATLAS, the third confirmed interstellar object, was discovered in July 2025. This object, on a ...
Scientists are observing the skies as the comet 3i/ATLAS makes a close flyby of Earth. Gabriel J. Sánchez is a producer for NPR's All Things Considered. Sánchez identifies stories, books guests, and ...
Astronomers worldwide are intensely studying 3I/ATLAS, a mysterious interstellar object entering our solar system. Its ...
I/ATLAS is only the third interstellar object ever identified, bringing fresh mysteries and redefining the boundaries between ...
Just in time for Hallowe'en in 2024, Hubble and JWST captured an image of two interacting spiral galaxies — IC 2163 and NGC ...
The newly discovered "twilight" asteroid, 2025 SC79, was obscured by the sun's glare until an astronomer pointed the Dark ...
"We study cometary bodies because they act as time capsules, sealing in material from their formation billions of years ago." ...
A small asteroid, known as 2025 TF, flew over Antarctica on October 1, 2025, at an altitude of only 266 miles.
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