How the balloon analogy for an expanding universe is almost perfect

If space-time is expanding, then why does gravity seem to pull things together? Physics can be…

Two giant planets collided and vaporised in a distant star system

A star behaving strangely was the first clue that astronomers were witnessing two Neptune-sized planets smashing…

The quantum experiment that could help find evidence of the multiverse

Scars of collisions with other universes could show up in radiation from the big bang. A…

Slicing the moon in half would be disastrous for Earth – but beautiful

The moon can be a scourge for astronomers, so the Dead Planets Society has figured out…

ISS livestream: Watch a live link-up with astronaut Andreas Mogensen

ESA astronaut Andreas Mogensen, commander on the International Space Station, answers questions from students at New…

How to see the Draconid meteor shower peak tonight

The Draconid meteor shower is happening between 6 and 10 October, peaking on 9 October, and…

How asteroids can help us understand our place in the cosmos

With the recent launch of the Psyche mission and the return of samples from the asteroid…

Largest known solar storm struck Earth 14,300 years ago

By comparing the rings of 140 trees buried in the bank of a French river, researchers…

Why trying to photograph a black hole was a massive gamble

Astronomers working on the Event Horizon Telescope project didn’t know if their attempt to photograph a…

JWST should soon glimpse the very first stars born after the big bang

The James Webb Space Telescope is looking ever further back in the universe’s history and the…