In 1920, astronomers Harlow Shapley and Heber Curtis held a Great Debate. Shapley argued that the spiral nebulae were small ...

Scientists have created the first-ever 3D maps of star-forming molecular clouds near the Milky Way's supermassive black hole, ...

Scientists predict Andromeda and the Milky Way will collide in about 4.5 billion years—reshaping the night sky forever!.

The astronomical panorama is a major accomplishment because Andromeda is the “closest” large galaxy to ours, at a distance of 2.5 million light years away — equal to the diameter of the Milky Way disk ...

Hypervelocity stars (HVSs) were first theorized to exist in the late 1980s. In 2005, the first discoveries were confirmed.

Scientists have unlocked the 3D structure of molecular clouds in the Milky Way’s center, using a groundbreaking X-ray technique. These cosmic clouds, vital for star formation, were illuminated by past ...

In 2011, a project that surveyed the Milky Way galaxy for exoplanets — which are planets beyond our solar system — spotted an intriguing signal: They found two objects traveling together ...

The elliptical galaxy NGC 4660 is one of a hundred galaxies imaged by Hubble that are members of the nearest large galaxy cluster to Earth, the Virgo Cluster. NASA’s James Webb Space Telescope has ...

Observations show Andromeda has a more active star formation history than the Milky Way, potentially due to a past galactic collision. NASA recently released images of the Andromeda galaxy ...

when researchers precisely measured the motions of many stars within the Andromeda Galaxy and found that these stars were approaching the Milky Way. Presently, the two galaxies are moving toward ...

It seemed that these redshifted galaxies were all moving away from the Milky Way. Hubble’s results suggested the farther away a galaxy was, the faster it was moving away from Earth. Hubble got ...

It seemed that these redshifted galaxies were all moving away from the Milky Way. Hubble's results suggested the farther away a galaxy was, the faster it was moving away from Earth. Hubble got the ...