Building a tiny starship may be doable. The big challenge will be making sure it survives all the hazards in interstellar space.
Inflatable space habitats, like the one installed on the International Space Station this week, could see wide application in space and planetary exploration.
The European Space Agency is exploring what we can learn from animals about long-term deep sleep.
Scott Kelly's year in space is over. Now we need to know what it did to his body.
We already have much of the technology we’d need to start a colony on another planet.
We should honour the dead by striving to go further.
No warp drives or worm holes required.
Four decades later, I find myself surveying 13 billion years of cosmic history and mapping events that really did happen a long time ago in galaxies far, far away.
Space is now big business. But is that good – or bad – news for NASA?
Many people think relativity puts a hard speed limit on the universe, but it actually opens up the possibility of faster-than-light travel - if we can overcome some significant practical hurdles.
Hollywood may already have done it but when we eventually send real astronauts to Mars, what medicines should we arm them with? And will they work the same way as they do on Earth?
Five science (fiction) reasons why you should get to know Doctor Who.
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.
Reported "evidence" that the proposed fuel-free "EmDrive" works (and breaks the known laws of physics) is nothing of the sort.
Russian cosmonaut Gennady Padalka should think twice before attempting to spend another thouands days in space.
The turbocharged capitalism of private space flight is strangely at odds with the brotherly, generous global consensus that built the legal framework for extra-terrestrial travel.
A prototype solar sailing satellite has just successfully been deployed in orbit, pointing the way to the future of space travel.
There's a cosmic speed limit that unfortunately means you aren't going to be firing up warp drive anytime soon.
Radiation in space could lead to cognitive decline.
Making science 'sexy' leads us to keep looking in the wrong place for the things science could do for us.