In a massive explosion of a black hole ripping apart a star, a dense gas cocoon was found surrounding the explosion, ...

Astronomers using the U.S. National Science Foundation National Radio Astronomy Observatory (NSF NRAO) instruments, the U.S.

New Mexico’s Plains of San Agustin are otherworldly: Silence, sand and sharp plants reign on the valley floor. Knobbly volcanic rock rises above. Pronghorns’ legs and jackrabbits’ ears break up the ...

Scientists have identified a strange cosmic relic called Cloud-9 — a starless, gas-filled object dominated by dark matter.

Eric and Wendy Schmidt are backing a start-up-like approach to building a giant space telescope and powerful ground ...