In the history of science few developments have been more important than the advent of the new heliocentric cosmology in the sixteenth and seventeenth centuries. Whereas most of the ancient Greeks ...

Ancient quasars seen by the James Webb Space Telescope technically shouldn’t exist, but one rare type of dark matter could make sense of that. Ultra-self-interacting dark matter clumped into ...

The Imago Mundi, the oldest known world map, offers a rare glimpse into the way ancient Babylonians viewed their world.

Over the past decade, cosmology has been embroiled in a growing ... fluctuations in the cosmic microwave background (CMB) — an ancient snapshot of the universe's first light contained within ...