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Diagram of the shape of a synestia – like a red blood cell or a doughnut

Space

Huge impact could have smashed early Earth into a doughnut shape

Many rocky worlds may have spent time as a newly named planetary form called a synestia – a loosely connected blob of molten rock and dust with a dented middle

News

Brendan Cowell as Galileo, Alex Murdoch as Little Monk

Space

��𳦳��’s Life of Galileo pumped up for the 21st century

Culture

Titan’s riverbeds show a terrain built more like Mars than Earth

Space

Titan’s riverbeds show a terrain built more like Mars than Earth

News

meteorites landing on early Earth

Space

Microbes might thrive after crash-landing on board a meteorite

News

Stars can start shining at a smaller mass than we thought

Space

Stars can start shining at a smaller mass than we thought

News

Picture of Earth looking very round and blue

Earth

Odds on: Five scientific theories decided by wager

Features

an exoneptune with its star

Space

Neptune-like exoplanet spotted that has a watery atmosphere

News

Space

NASA rocket mission takes 1500 sun images in just 5 minutes

News

Waves surge in opposite directions around Io's largest lava lake

Space

Waves surge in opposite directions around Io's largest lava lake

News

Protoplanetary disc around young star TW Hydrae.

Space

Earth may have been born in a huge flare-up of the young sun

A sudden brightening of the infant sun – called an FU Orionis outburst – could have melted dust grains and made them stick together, building our world

News

Space

Watch Cassini's first two dives between Saturn and its rings

News

Space

Marvel at the images from Cassini's first Grand Finale orbit

News

Space

First look at images from Cassini's dive between Saturn's rings

News

Space

Melting moons could support liveable atmospheres for aeons

News