The interstellar comet 3I/ATLAS has turned into a natural physics lab, and the Hubble Space Telescope is sitting in the front ...

When the object now known as 1I/ʻOumuamua streaked through the inner Solar System in 2017, it instantly rewrote the playbook ...

Follow live coverage from NBC News as President Donald Trump launches his Board of Peace at Davos and Denmark, Greenland ...

A Cuban migrant held in solitary confinement at an immigration detention facility in Texas died after guards held him down, according to an autopsy report released Wednesday that ruled the death ...