A new space telescope with Irish scientific involvement goes into operation this week on a mission to study how stars behave ...

A handful of extremely massive stars, each heavier than 1,000 Suns, may have sculpted the chemistry of the oldest star ...

Monster black holes entered the cosmic scene soon after the Universe’s birth and grew rapidly, reaching millions or even ...

As these young stars form, they pull matter from their surroundings, developing a swirling disk of gas and dust around them known as an accretion disk. This material rotates, clumps together and ...

The “space dust” which helps to form the stars and planets around the cosmos is spongier than previously thought, a group of scientists have found. The international group of astronomers and ...

Pulsars could be helping scientists distinguish between gravitational waves caused by supermassive black hole collisions and leftover waves from the Big Bang. Ripples in spacetime from both the merger ...

New observations from the James Webb Space Telescope hint that the universe’s first stars might not have been ordinary fusion-powered suns, but enormous “supermassive dark stars” powered by dark ...

You might think the space between stars is completely empty, but it’s actually packed with way more stuff than you’d expect. While most of it just whizzes right past us here on Earth (if we’re lucky), ...

The long-exposure image shows just how fast the Simonyi Survey Telescope moves. The Vera C. Rubin Observatory has begun its decade-long survey to scan the entire night sky every three days. To do this ...