Interstellar Comet 3I/ATLAS was the third visitor from outside our system, and its origins were being studied using an interstellar visitor model.

NASA’s Transiting Exoplanet Survey Satellite (TESS) has made yet another exciting discovery—but it never works alone. Thanks ...

How do we know 3I/ATLAS, also called comet C/2025 N1 (ATLAS), is interstellar? Will it strike Earth? Can we visit it? Here ...

Though 3I/ATLAS will never come close to Earth, its passage offers a rare chance to study material beyond our solar system with ground-based and orbital telescopes, before it accelerates back into ...

This week, astronomers spotted the third known interstellar visitor to our Solar System. First detected by the Asteroid ...

Researchers from the Nanjing Institute of Geology and Paleontology of the Chinese Academy of Sciences and Columbia University ...

A11pI3Z: Astronomers believe fast-moving object A11pI3Z could be only the third known interstellar visitor, after 'Oumuamua ...

Estimates of A11pl3Z's orbit are changing fast, but it is clear that it barely bends on its way past the Sun, being very much ...

Researchers from the Nanjing Institute of Geology and Palaeontology of the Chinese Academy of Sciences and Columbia University, along with their ...

As the closest planet to the Sun, Mercury is exposed to the star's enormous gravitational field. And it's really stressful.

In fact, the high orbital eccentricity actually means that the exoplanet only spends part of its orbit in the habitable zone, which is a circular zone around the star at a distance where ...