The ion tail appeared as Comet C/2025 R3 PanSTARRS was about 45 million miles from Earth (72 million kilometers) during its closest approach.

A new image shows the growing tail of a comet from another star system streaking across our solar system. The image of comet 3I/ATLAS was captured on Aug. 27 using one of the telescopes at the ...

When comet 3I/ATLAS swept through the inner solar system in late 2025, it gave astronomers something no interstellar visitor ...

A famous comet visiting from outside our solar system known as 3I/ATLAS is blazing through our cosmic neighborhood, leaving a striking trail in its wake. A ground telescope in Chile recently glimpsed ...

A new image shows the growing tail of a comet from another star system streaking across our solar system. The image of comet 3I/ATLAS was captured on Aug. 27 using one of the telescopes at the ...

NEW YORK CITY — The Hubble Space Telescope and the Jupiter Icy Moons Explorer have captured fresh images of an interstellar comet as the object nears its closest approach to Earth later this month.

Editor’s note: Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. (CNN) — The Hubble Space Telescope and ...

Alfredo has a PhD in Astrophysics and a Master's in Quantum Fields and Fundamental Forces from Imperial College London. Alfredo has a PhD in Astrophysics and a Master's in Quantum Fields and ...

The behaviour of a celestial object has sparked a cosmic debate. Astronomers are accustomed to comets sporting a bright, distinctive tail as they zoom near the Sun. So, when the object 3I/ATLAS was ...

During the past few years, we have witnessed a bumper crop of bright naked-eye comets, beckoning us to set up a camera and record their beauty to share with friends and family. However, the next great ...