For many of us, the idea of a solar system with just eight planets is a fundamental concept in science. However, since Pluto was reclassified as a dwarf planet in 2006, Neptune has stood as the last ...

A recently discovered interstellar object, 3I/ATLAS, could potentially be the oldest comet ever observed, predating our solar ...

Professor Avi Loeb, a theoretical physicist and cosmologist from Harvard University, told MailOnline why he thinks a new ...

Discover 3I/ATLAS, an interstellar comet with a reddish hue, rich in water ice, and possibly predating the solar system.

Scientists determine if an object is interstellar by computing its trajectory and observing its speed, as demonstrated with the recently discovered 3I/Atlas.

I/Atlas was first spotted on July 1 by the Asteroid Terrestrial-impact Last Alert System (Atlas) survey telescope in Río ...

On July 1, 2025, the Asteroid Terrestrial-impact Last Alert System (ATLAS) survey telescope, located in northern Chile, ...

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I/ATLAS is the third known interstellar object ever discovered At 15 km wide, it’s larger and brighter than ʻOumuamua or Borisov Scientists will analyze its light to trace its system of origin ...

A mysterious object, first observed hurtling across the solar system on July 1, has now been identified as "very likely to be ...

In the vast expanse between Uranus and Neptune, a team of researchers have uncovered something really quite extraordinary, a ...