Astronomers have achieved a groundbreaking feat by capturing the first clear image of a star in another galaxy. This ...

A massive filament of gas and dust, designated X7, has been elongated during its long approach to the Milky Way galaxy's supermassive black hole Sagittarius A*. See W.M. Keck Observatory imagery of X7 ...

The circumgalactic medium, a vast gaseous halo surrounding galaxies, could be crucial to the evolution of star-forming ...

One of the first constellations amateur astronomers come to recognize, the Queen offers observers many worthy sights.

This NASA/ESA Hubble Space Telescope image reveals a tiny patch of sky in the constellation Hydra. The stars and galaxies ...

Death Valley National Park offers some of the best stargazing in America, with DarkSky International having designated it as a Gold Tier Dark Sky Park.

Researchers have unveiled a cosmic cycle where carbon, created in the explosions of stars, travels through space via a ...

A group of astronomers have made history by capturing an image of a record number of stars from a time when the universe was ...

Galanti and his colleagues had previously found evidence of axion-like particles in light from distant blazars – extremely active galaxies that blaze with light. But the brightest gamma-ray explosion ...

New research suggests that most of the atoms within the human body likely spent part of their lives drifting beyond the Milky ...

Could time itself actually explain our universe's expansion? Our current cosmological model—known as lambda cold dark matter, ...