When you buy through links in our articles, Future and its syndication partners may earn commission. Composite visible-light and X-ray image of the galaxy cluster Abell 2390, showing the large area of hot, X-ray emitting gas within the cluster. | Credit: ESA/XMM-Newton/Euclid/Euclid Consortium/NASA By combining a new image of a giant image galaxy cluster with… Read More »
There are three ways to look for evidence of alien technological civilizations. The first is to be wary of deliberate attempts to communicate their presence, for example through radio broadcasts. Another is to look for evidence that they have visited the Solar System. A third option is to look for signs of large-scale engineering projects… Read More »
Astronomers have imaged a feeding black hole-powered quasar at the very edge of the universe, far enough away to appear less than 1 billion years after the Big Bang. The quasar, named SDSS J114816.64+525150.3, is powered by a supermassive black hole with more than 3 billion times the mass of the sun, located in the… Read More »
NASA scientists have observed a striking cosmic fossil formed by the explosion of a supermassive black hole 5 million years ago. The team at the space agency’s Goddard Space Flight Center used the X-ray Multiple Mirror Mission (XMM-Newton) space telescope with assistance from NASA’s Chandra X-ray Observatory to detect X-rays outlining relatively nearby clouds of… Read More »
Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news about fascinating discoveries, scientific advancements and more. Strange radio rings in space have been puzzling astronomers since the cosmic objects were first discovered in 2019. Now scientists think they may be able to understand what makes up these mysterious celestial structures, and… Read More »
Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news about fascinating discoveries, scientific advancements and more. Strange radio rings in space have been puzzling astronomers since the cosmic objects were first discovered in 2019. Now scientists think they may be able to understand what makes up these mysterious celestial structures, and… Read More »
A photograph of Betelgeuse taken by the Hubble telescope.Andrea Dupree (Harvard-Smithsonian CfA), Ronald Gilliland (STScI), NASA and ESA Betelgeuse, one of our brightest stars, will nearly disappear on December 12. This is because it is a “once in a lifetime” event, such as an asteroid blocking the star’s light. Amateur astronomers can monitor the event… Read More »