cosmology

Astronomers generally stay away from the “Zone of Avoidance.” When one astronomer didn’t, she found a giant cosmic structure that could help explain why our galaxy moves so fast.

New data tracking the movements of millions of Milky Way stars have effectively ruled out the presence of a “dark disk” that could have offered important clues to the mystery of dark matter.

The Zoomable Universe, a new book by the astrobiologist Caleb Scharf, the illustrator Ron Miller and 5W Infographics, tours the universe’s 62 orders of magnitude.

Newly discovered “standard sirens” provide an independent, clean way to measure how fast the universe is expanding.

The first major results from the Dark Energy Survey signal the start of a new era of cosmology.

Astronomers thought that all Type Ia supernovas shine with the same brightness, making them incredibly useful cosmic yardsticks. But uncertainty over what causes these explosions has led researchers to reconsider their assumptions.

Daily bike rides, serendipitous interactions and long periods of solo thinking inspire this string cosmologist.

The newly developed theory of emergent gravity, proposed as an alternative to dark matter, struggles in one of its first trials.

A different kind of dark matter could help to resolve an old celestial conundrum.