Earth’s early atmosphere may have been toxic like the one on Venus

After the moon formed, Earth was probably left with an ocean of molten rock, which may…

China's Chang'e 5 probe is the start of a new era of lunar exploration

Chang’e 5 is set to bring moon rocks back to Earth for the first time in…

The universe is expanding too fast, and that could rewrite cosmology

Different measurements of the Hubble constant, the rate of space-time expansion, refuse to agree – meaning…

China is about to launch its most advanced mission to the moon yet

The robotic Chang’e 5 mission will land on the moon, gather rock samples and then blast…

China has launched its most advanced mission to the moon yet

The robotic Chang’e 5 mission will land on the moon, gather rock samples and then blast…

Earth had a minimoon for nearly three years before it drifted away

Astronomers spotted a minimoon orbiting Earth in February and have confirmed it was there for nearly…

We’ve seen a planet being born while its star is still forming

Astronomers may have seen a Jupiter-like planet begin to form while its host star is still…

Repeated radio bursts from nearby star suggest such signals are common

The first source of fast radio bursts inside our galaxy is also producing much weaker signals,…

Satellites with flashing LEDs could help avoid catastrophic collisions

It’s difficult to keep track of satellites in Earth’s orbit and avoid collisions – making them…

How-to guide for CPR in space could help treat astronaut heart attacks

Nobody has had a heart attack in space yet, but such a medical emergency might occur…