Eleven billion years ago, a hot, active, eyeball of a galaxy glared across space. It formed in a violent collision, and could help explain the Milky Way's spiral.
A massive, rotating disk galaxy that first formed just 1.5 billion years after the Big Bang, could upend our understanding of galaxy formation, scientists suggest in a new study.
NASA has renamed its Wide Field Infrared Survey Telescope (WFIRST) to honor the renowned astronomer Nancy Grace Roman, also known as the "mother of Hubble."
China's FAST radio telescope has uncovered the first known pulsar in the star cluster Messier 92. The super-fast pulsating object forms one part of an eclipsing binary.
It was a major scientific scandal as established astronomers and a female graduate student butted heads over the composition of the sun.
In his new book, "What Stars Are Made Of: The Life of Cecilia Payne-Gaposchkin," author Donovan Moore tells the story of a young British scientist at the forefront of astrophysics.
Scientists have spotted evidence of Jupiter-like stripes in the thick atmosphere of a nearby brown dwarf, a new study reports — and this evidence was gathered in a novel way.
Astrophysicist Katie Mack will talk about the end of the universe today (May 6), and you can follow the discussion live — and even ask her a question, if you'd like.
Is space-time ultimately smooth at the tiniest of scales, or something else? It seems impossible to measure, but researchers are beginning to look down. Deep down.
In the beginning, it was just the Large Space Telescope, its mundane name a marker of how very extraordinary an observatory it was.
A mammoth star explosion known as SN2016aps, which occurred in a galaxy about 3.6 billion light-years from Earth, is the brightest supernova ever seen, a new study reports.
For the first time ever, astronomers have measured wind speed on a brown dwarf, an object heftier than a planet but not massive enough to host the fusion reactions that power stars.
Margaret Burbidge, an astronomer who made vital contributions to our understanding of what happens inside stars and who worked on instruments that flew on the Hubble Space Telescope, has died at 100.
Astronomers have detected two stellar corpses whirling around each other, and they might be producing gravitational waves.