"A bit like dinosaurs on Earth — they were enormous and primitive. And they had short lives, living for just a quarter of a million years." ...

Our universe is filled with galaxies, in all directions as far as our instruments can see. Some researchers estimate that ...

How can a galaxy display perfectly defined spiral arms when the Universe had only a little over 10% of its current age? This ...

New NASA-backed research using the Chandra X-ray Observatory suggests many small galaxies may lack supermassive black holes, ...

NASA’s Roman Space Telescope will study thousands of cosmic voids, mapping galaxy distributions to investigate dark matter, dark energy and the universe’s large-scale structure through precise ...

Hubble has turned its sharp gaze on a compact, intensely blue dwarf galaxy about 13 million light years away, revealing a ...

A newborn star 15,000 light-years from Earth is fascinating astronomers with its dual blasts of superheated plasma jets. The ...

A sudden X-ray flare from a supermassive black hole in galaxy NGC 3783 sparks ultra-fast winds, offering new clues about ...

This interstellar vagabond is only the third large interstellar visitor that we have ever discovered — an asteroid or comet ...

A mysterious excess of far-ultraviolet light seen across the Milky Way could come from the annihilation of clumpy dark matter ...

When 3I/ATLAS is closest to the Earth on Dec. 19, all the features that we are looking for will be easier to detect with our ...

While the 21st century has been bumpy, it has also ushered in monumental scientific and technological breakthroughs that have ...