It has been a long and eventful journey for Tim Peake during his six months on board the International Space Station. Here we present seven of our favourite moments from Peake's Prinicipia mission.
Follow the UK astronaut's return journey home via our live stream, courtesy of ESA.
Exactly how our Solar System formed remains a mystery for astronomers, but observations of a young, ravenous star may have revealed a vital clue.
With Virgin Galactic, SpaceX and Blue Origin all set to make inroads into the world of reusable space technology, it looks like commercial space flight is finally about to take off.
The Kepler Space Telescope continues to reveal the stars and planets that exist beyond our Solar System. Now the telescope has broken a new record, after astronomers spotted a massive Jupiter-sized planet orbiting two stars.
New observations with ESO's ALMA telescope have changed astronomers' perception of how black holes feed.
Mars orbiters have managed to detect patterns in the dust storms occurring on Mars.
The study of exoplanets is key to understanding how our own Solar System formed. But a new study suggests that observations of a massive type of exoplanet called hot Jupiters have been hindered by cloudy and hazy atmospheres.
A new study reveals that galaxies are not as efficient at creating stars as originally thought.
A space-based observatory will be necessary to continue more detailed studies of gravitational waves in the future. This ambitious project has moved closer to realisation with the successful deployment of ESA's LISA Pathfinder mission.
Radio wavelength images of Jupiter's atmosphere have revealed the cycle of ammonia that produces the planet's equatorial clouds.
The Hubble Space Telescope has revealed that the modern Universe is expanding at a faster rate than it did shortly after the Big Bang.
Geological activity in Pluto's heart-shaped region is continuously recycling surface nitrogen ice through a lava lamp-like convection current.
As judging gets underway for this year's Insight Astronomy Photographer of the Year competition, British astronaut Tim Peake was asked by the Royal Observatory Greenwich to select which of his many photos captured from the International Space Station might stand a chance of winning.
The search for young planetary systems continues, as astronomers look to piece together the story of how planets form. A team of scientists seeking out young stars have found a massive planet, bigger than Jupiter, orbiting a specimen just two million years old.
Were the ingredients that kick-started life on Earth delivered by a comet or asteroid crash-landing on our planet? New data from ESA's Rosetta mission has revealed this could have been the case.
Understanding Mars's climate history is key to understanding how its landscape has changed over time. NASA scientists have made a leap forward in the study of the Martian climate with the discovery of evidence of an ice age 400,000 years ago.
Enter our competition for the chance to win a break for two at a dark-sky hotel in Northumberland, complete with access to its on-site observatory.
Researchers have discovered two objects that could be the 'seeds' of supermassive black holes, and could help explain why early black holes grew so quickly after the Big Bang.
Astronomers continue to search the Solar System for impact craters that can reveal the secrets of its formation. Two relatively young craters have been found on the Moon using a new technique that involves ultraviolet light.