Watch the epic view of the moon and Earth captured by the Orion spacecraft ahead of its outbound powered flyby. Credit: NASA ...

Perihelion for 3I/ATLAS takes place on Oct. 30, when the interstellar interloper will be 1.35 astronomical units (125 million ...

Interstellar comet 3I/ATLAS reaches perihelion hidden from Earth's view. Learn why NASA and ESA spacecraft have a front-row ...

Stargazers using telescopes should be able to see the object in the predawn sky beginning Nov. 11, according to EarthSky.

A distant gas giant the size of 10 Jupiters is now the first planet outside Earth's solar system to be mapped in three ...

NASA joins the Roman space telescope and key instruments, marking a milestone toward its 2027 launch to reveal the cosmos.

What you're looking at here is the aftermath of a sun-like star that eventually reached the end of its life and poofed out ...

Travel back 390 million years after the big bang to the ancient Maisie's Galaxy in this stunning 3D visualization that ...

This month prominent peer-reviewed journals have published two papers that link apparent flashes of light seen by a telescope ...

Before then, though, our interstellar visitor will make its closest approach to Earth on December 19, 2025, at a safe ...

I/ATLAS has unexpectedly become bluer than the Sun, hinting that it could be emitting light, not just reflecting it — a sign ...

Newly discovered multi-wavelength view of a stellar eruption on a young Sun-like star is changing how we think about life's ...