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A mystery interstellar object discovered last week is likely to be the oldest comet ever seen—possibly predating our solar ...
The icy traveler, called 3I/ATLAS or Comet ATLAS, was discovered on July 1 by the NASA -funded ATLAS survey telescope in Río Hurtado, Chile. This enormous space snowball came from the direction of the ...
A renowned physicist believes he's cracked the mystery of where a giant unidentified object hurtling through our solar system ...
Astronomers have spotted a new interstellar object — the third of its kind ever seen — shooting towards us through the solar ...
Just the third-ever confirmed interstellar object has been detected in our solar system. Here's what we know. (Spoiler: It's ...
The awe-inspiring distances of the cosmos are hard to visualise, so how can we be certain we are measuring them correctly?
A rare interstellar comet is flying through our solar system. Here's how—and when—you might be able to see Comet ATLAS from ...
NASA's ATLAS telescope in Chile has detected a fast-moving interstellar comet, named 3I/Atlas, currently located 4.5 au from the Sun. This is only the third alien object observed in our solar system, ...
The NASA-funded ATLAS (Asteroid Terrestrial-impact Last Alert System) survey telescope in Rio Hurtado, Chile, first reported observations to the Minor Planet Center of comet 3I/ATLAS on July 1, 2025.
Earth and our entire Milky Way galaxy may sit inside a mysterious giant hole which makes the cosmos expand faster here than ...
3I/ATLAS, also known as C/2025 N1, is a comet from interstellar space, meaning it originated in another star system and entered our solar system on a one-time flyby. It was first spotted by the ATLAS ...
Astronomers are tracking a newly spotted comet hailing from parts unknown, only the third time such an interstellar object ...