astrophysics

A group of scientists may have stumbled upon a radical new way to do cosmology.Cosmologists usually determine the composition of the universe by observing as…

After just seven months, a huge team of scientists who work with the Dark Energy Spectroscopic Instrument have already mapped a larger swath of the cosmos…

Next year, we will begin creating our most detailed map yet of the visible sky, as the Vera C. Rubin Observatory in Chile begins operations. The information…

The first detection of gravitational waves in 2016 provided decisive confirmation of Einstein’s general theory of relativity. But another astounding…

Jeletic and his team also try to anticipate potential mishaps. For example, they found that the thin wires Hubble’s gyroscopes depend on gradually corrode…

The objects Dee and his colleagues studied, recovered from L’Anse aux Meadows decades ago and carefully preserved in a freezer in a Parks Canada storage…

Dan Caselden was up late on November 3, 2018, playing the video game Counter-Strike, when he made astronomy history. Every time he died, he would jump on his…

In July 1967, at the height of the Cold War, American satellites that had been launched to look for Soviet nuclear weapons tests found something wholly…

Around July 4, 1054, Chinese astronomers recorded a "guest star" that shone so brightly, it was visible in broad daylight for 23 days. The remnants of that…