But researchers have used the James Webb Space Telescope, a collaboration of NASA and its European and Canadian space ...

In the years following the launch of NASA's Hubble Space Telescope, astronomers have tallied over 1 trillion galaxies in the universe. But only one galaxy stands out as the most important nearby ...

Galaxies like the Milky Way grow by merging with smaller galaxies over billions of years, unlike dwarf galaxies, which have long been thought to lack the heft to attract mass and grow in the same way.

The image of supermassive black hole Sagittarius A * was created using data from the Event Horizon Telescope Collaboration. At the same time several telescopes, including the Chandra X-ray Observatory ...

The James Webb Space Telescope has captured a mid-infrared picture of Sagittarius A*, filling in a long-standing gap in ...