Astronomers find a way to work out the gravity on distant stars - some of which we know very little about.
British astronaut wishes 'everybody on our beautiful planet Earth' a happy New Year.
IBTimes has chosen 10 images released by the ESA this year.
Earth is now surrounded by space debris – watch the story of how this happened.
Major astronomy events next year include eclipses, visible planets and supermoons.
Major Peake said it was not a prank call, but 'just a wrong number!'
Nasa says 'full cold moon' will peak at 23:11GMT.
Problem solved prior to arrival of Russian cargo ship for Christmas day delivery.
UK astronomers say giant comets pose a greater threat to life on Earth than asteroids.
'The extraordinary efforts of the team have set the bar for extra-terrestrial farming'.
Elon Musk's SpaceX successfully lands unmanned rocket upright for the first time in history.
It is for the first time in history that an orbital rocket has successfully achieved a ground landing.
His parents were out when he left the message: 'This is your son calling from the International Space Station'.
Black holes use the gas floating around them as their 'food source'. Once it runs out, it cannot grow anymore.
The winter solstice will take place on 22 December in the northern hemisphere, marking the longest night of 2015.
Peake says after some initial discomfort his body has got used to weightlessness in space.
Hubble Space Telescope spots The Force Awakening in a newborn star.
Astronomers have found a planet just 14 light years away that could hold water and life.
Flyby will be from a safe distance of 6.7 million miles away from Earth.
British astronaut Peake starts his six-month mission on the International Space Station.
Research shows the speed that a galaxy spins affects how it looks through a telescope.
Peake successfully launched into space at 11.03am with fellow astronauts Tim Kopra and Yuri Malenchenko.
Twitter explodes with Photoshopped photos of Cameron watching the Peake launch.
It was a successful launch for Tim Peake, as the Soyuz TMA-19M heads for the International Space Station.
British astronaut Tim Peake will head to the International Space Station at 11.03am GMT.
Researchers have found water on planets outside of the solar system, which had previously been blocked by clouds.
The story behind first Briton to complete a mission on the International Space Station.
Watch the live stream of the first British individual to carry out a mission on the ISS.
The spacecraft that will transport Tim Peake to the International Space Station is now on its launch pad.
Tim Peake has revealed the soundtrack of his six-month stay on the International Space Station.