Looking at a distant galaxy means looking back in time.

Expansion of the universe had already been anticipated by theorists. In the early 1920s, Alexander Friedmann and Georges ...

The XRISM (X-ray Imaging and Spectroscopy Mission) space telescope, a collaboration between JAXA, NASA, and ESA, has ...

Researchers have discovered an extraordinarily aligned gravitational lens system, dubbed the Carousel Lens, that involves a ...

The energetic streams are together 23 million light-years in length—roughly as long as 140 Milky Way galaxies lined end to end ...

MIT scientists say that dark energy could be the missing factor that explains some of the most perplexing phenomena in the ...

The discovery of something this immense surprisingly early in the lifetime of the universe overturns what we thought we knew ...

Oklahoma City is now home to the highest-caliber planetarium in the United States, according to the Science Museum Oklahoma.

Lightsaber color meanings reflect a Jedi or Sith's path, from blue for courage to red for power. Discover the significance ...

New infrared image highlights star formation triggered by merger-in-progress. Arp 107, a pair of interacting galaxies, shines ...

Scientists have discovered the largest known black hole jet, named Porphyrion, stretching 23 million light years across. This colossal jet raises intriguing questions about its perfectly straight ...

Astronomers found the biggest pair of black hole jets ever observed, stretching 23 million light years. and named this system ...