Using ESA's Gaia satellite, astronomers have detected 87 stellar streams associated with globular clusters (GCs) in our Milky ...

Warm Jupiters are rewriting the rules of planet formation - showing eccentric orbits that stay strangely aligned with their ...

Old binary star systems may contain stars that are even hotter than scientists previously believed. White dwarfs are the dense, compact remains left behind when stars exhaust their nuclear fuel, a ...

For the first time, scientists observed a black hole tearing apart a star far from its galaxy’s center, producing the fastest ...

With the recent discovery of traces of what may or may not be or have been life on Mars, eyes are turning to another world in ...

Evidence points to a long-lost ocean beneath Ariel’s icy crust. Tides and orbit shifts may have cracked its surface billions of years ago. Growing evidence indicates that a deep ocean may lie hidden ...

A vast river of neutral hydrogen bridges two galaxies that are beginning to enter the monstrous Virgo Cluster, and this structure is helping astronomers better understand our Milky Way's relationship ...

Nobel laureate Kip Thorne, who will deliver the Royal Irish Academy 2025 Hamilton Lecture, on his lifelong quest to ...

Scientists think one of Uranus' moons may once have had an ocean roughly 100 miles deep — about 40 times deeper than the Pacific Ocean — and could still possibly hold remnants of it.

Scientists think Uranus’s moon Ariel once had a hidden ocean beneath its icy shell. The moon’s orbit stretched enough to crack the surface.

In a remarkable cosmic event, astronomers have detected a black hole-star merger that has resulted in the longest gamma-ray burst ever recorded. This event not only shatters previous records in ...

White dwarfs—the dense, fading cores left behind after stars like our sun die—are usually calm, cool, and ancient. Over ...