And it had traveled from somewhere far beyond our galaxy.

Evidence from old NASA and ESA data suggests magnetar flares may have created heavy elements in the early universe.

Scientists have found evidence for a cosmic collision in the Perseus cluster, a group of thousands of galaxies not far from ...

Astronomers believe starquakes on highly magnetic neutron stars could lead to the creation of heavy elements such as gold, ...

Mercury, the smallest planet in our solar system, has many features that have puzzled scientists for a long time. For […] ...

"Our findings pave the way for rigorous examinations of black holes and the exploration of new physics in gravity." ...

Physicists propose that high-energy photon jets from collapsing stars may be secret factories of heavy elements like ...

Earth and Mars are mysteriously low in elements like copper and zinc, which are crucial for planetary chemistry and potentially life. A new study overturns old theories by showing that these elements ...

Galaxies speckle the heavens like stars in a stunning new photo of the deep and distant universe.

For decades, astronomers were certain that half of the ordinary matter in the universe — protons and neutrons, the building ...

Astronomers thought the Perseus cluster was a massive-but-stable grouping of galaxies, until they found hints of a collision with another cluster — but no one had identified a cosmic interloper.