The sudden silence of a veteran Mars spacecraft has turned a routine comet flyby into one of the most intriguing space ...

Orbiting a pulsar, astronomers have found a strange, lemon-shaped exoplanet with winds of helium and pure carbon, denser than ...

December is the month that fans of 3I/ATLAS have been waiting for as the interstellar comet makes its closest approach to Earth.

Is it natural? Astronomers spot strange protrusion on object 3I/ATLAS as it speeds toward Earth. The interstellar comet shows ...

Over a month after its perihelion, or closest pass of the Sun, observations still clearly show 3I/ATLAS' "anti-tail." ...

A strange 200 million-year-old object with the mass of a planet has been discovered 20 light-years from Earth, outside our solar system. The "rogue," as it's referred to by researchers, is producing ...

3I/ATLAS showed a complex tail structure early this morning of November 8, 2925. It was observed at 29 degrees elongation from the Sun. In July and August , other researchers calculated that 3I Atlas ...

A striking new image of the strange interstellar object 3I/ATLAS has revealed it is growing a tail, offering more proof that it is a comet visiting our Solar System. The suspected comet, discovered on ...

Object 3I/ATLAS is now too far from Earth to aim a telescope at, but prior observations showed some unusual behavior. The anomalous nature of the object led astrophysicist Avi Loeb to apply a thought ...

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The interstellar comet 3I/ATLAS will make its closest approach to Earth on Dec. 19. Originating from outside our solar system, the comet is not a threat to Earth. While not visible to the naked eye, ...