Our new results provide the strongest evidence yet that at least some Halley-type comets carried water with the same isotopic ...

A rare astronomical event set to occur in days has sparked renewed speculation about biblical prophecy, apocalyptic warnings ...

Headed for a metal-rich asteroid of the same name, the Psyche spacecraft successfully calibrated its cameras by looking homeward.

While observing the Halley-type comet 12P/Pons-Brooks with ALMA and NASA's Infrared Telescope Facility, researchers ...