Look ma, no gravity!
Every moment of life on our planet has had the force of gravity in the background. But the prospect of long-distance space travel means it's time to figure out what happens to our biology in its absence.
Separated at launch. Scott and Mark Kelly.
A twin experiment in space can help us prevent diseases on Earth.
Using terrestrial forensic science to point the finger of blame to criminals in space will be much harder than it looks.
Giant leap – just give me a sec.
New research has found that Neil Armstrong's strong midwestern accent is making it impossible for us to work out what he actually said when he first set foot on the moon.
Right, time for a little zero gravity and chill…
What viewing on the International Space Station tells us about life among the stars.
Tim Peake, Yuri Malenchenko and Tim Kopra are about to return to Earth after a six-month stay at the ISS.
In theory, astronauts get the equivalent of a lethal x-ray dose during a six-month stay at the ISS. Here's why we don't have to worry too much though.
Ron Garan during one of his four spacewalks.
Former NASA astronaut Ron Garan speaks his mind about space travel, terraforming and religion.
Why weightlessness in space is about balancing forces rather than a lack of gravity.
NASA’s Orion spacecraft will be able to take humans further away from Earth than ever before.
From inflatable space stations to trips to asteroids and maybe even Mars, the next decade of human spaceflight will include many exciting firsts.
Astronaut Tracy Caldwell Dyson at the International Space Station.
We are only starting to understand the impact of space travel on women's health. But a new study has just made it easier for astronauts to decide whether they want to stop their periods.
The force on a triple jumper’s bones is 15 times their body weight.
Studying how athletes' bones contort during exercise is helping scientists understand which exercise is best for maintaining healthy bones as we age.
Gene Cernan driving a lunar rover in December 1972.
The Last Man on the Moon is much more than a biographical documentary – it is a gripping account of human endeavour.
Soviet’s Mir space station in 1986.
Soviet space station Mir hosted astronauts from a significant number of countries – laying the foundation for the ISS. But how long will this collaborative spirit last?
Nice night for a stroll: Scott Kelly working outside the International Space Station in 2015.
What's life like in a hostile environment that's literally out of this world?
How many astronauts does it take to undo a bolt?
Scientists on the International Space Station are preparing for one of the biggest DIY challenges of their lives.
Time to salute the monkeys, dogs and ducks that went before us.
Humans have now been living on the International Space Station for 15 years. Here's what we've learned.
Tim says bye.
What does it feel like to prepare for a journey to space? Space scientist Monica Grady followed astronaut Tim Peake around for a few days before his launch to find out.
Andreas Mogensen, Aidyn Aimbetov and Gennady Padalka rest outside their spacecraft and are surrounded by support personnel after landing.
Gennady Padalka has returned to Earth from the International Space Station. He has broken the record for time in space and will be the first person on Earth to have eaten salad grown in space.
Padalka might be keeping fit but we simply don’t know what effect repeated space travel can have on our bodies.
Russian cosmonaut Gennady Padalka should think twice before attempting to spend another thouands days in space.