Long before humans walked the Earth, your solar system had a brush with two blazing blue stars that passed surprisingly close ...

For Earth to be born, our solar system needed certain isotopes which could only be formed by supernovae. But, shouldn't such ...

So far, humanity has yet to find its first "exomoon"—a moon orbiting a planet outside of the solar system. But that hasn't ...

Explore the vast distances between planets and objects in our solar system, and why most of the space around us is a wide ...

Astronomers are closing in on one of the most tantalizing possibilities in planetary science, evidence that a previously ...

Using observations from both ground-based telescopes and space instruments, they were able to measure the planet's size and ...

Universe Today reports on a new telescope proposal that could help astronomers detect Earth-sized exomoons, explaining current limits, future technology, and why moons around distant planets matter ...

What: Ultraviolet observations of the interstellar comet 3I/ATLAS captured by NASA’s Europa Clipper spacecraft while the ...

Astronomers at the Center for Astrophysics | Harvard & Smithsonian have captured what may be the biggest planet-forming disk ...

A lucky alignment of space- and ground-based telescopes has enabled researchers to nail down the mass of a rogue planet for the first time. Unlike worlds in our Solar System, rogue planets do not ...

Jupiter ’s moon Europa, long considered a prime candidate in the search for extraterrestrial life due to its vast subsurface ...

Pre-discovery archives have only added to the confusion. It turns out 3I/ATLAS may have been active even further out, beyond ...