A galaxy cluster once thought to be “dead” is unexpectedly forming stars at an astonishing rate, challenging established ...

Artist's concept of light flares along Sag A*'s accretion disk. (Credit: NASA, ESA, CSA, Ralf Crawford (STScI)) ...

This NASA/ESA Hubble Space Telescope image depicts the cosmic tangle that is MCG+05-31-045, a pair of interacting galaxies located 390 million light-years away. UGC 1810 and UGC 1813 are spiral ...

We typically think of the Oort cloud as scattered ice balls floating far from the sun, yet still tied to it gravitationally.

In 1974, science fiction author Larry Niven wrote a murder mystery with an interesting premise: Could you kill a man with a ...

Scientists have captured the most detailed image of a cosmic filament which could lead to a better understanding of galaxy ...

New findings explain the Phoenix cluster's mysterious starburst. Data confirm the cluster is actively cooling and able to generate a huge amount of stellar fuel on its own.

Scientists at the U.S. Department of Energy's Argonne National Laboratory recently used the second-fasted supercomputer in the world to create the ...

After hundreds of hours of observations, researchers captured a highly detailed image of a long filament of the "cosmic web" ...

Einstein predicted the existence of gravitationally-warped rings of light in 1915. Now, a new one has been discovered just a ...

Quipu, Hercules, Serpens–Corona Borealis and Sculptor–Pegasus are all larger than the fifth and final superstructure ...