Earth-like Saturn moon flunks quantum-mechanical test for life
Space and Ufo
2 Russian satellites are stalking a US spysat in orbit. The Space Force is watching.
New pattern uncovered in mysterious ‘fast radio bursts’ from deep space
Satellite spies gigantic ‘fuzzball’ clouds spreading near Australia coast
Rosetta’s ‘rubber ducky’ comet changed color as it neared the sun. Here’s why.
Pluto’s famous heart powers icy winds on the dwarf planet
A galaxy from the early universe grew astonishingly fast, then suddenly stopped
When did the universe ‘wake up’?
A buried Antarctic observatory could finally reveal how neutrinos get their weird little masses
Two invisible stars are bending space-time deep in the Milky Way
Photons could reveal ‘massive gravity,’ new theory suggests
Oddball sexaquark particles could be immortal, if they exist at all
