NASA called the substance 'mind-blowing'
The trip to Mars is thought to take three years, and with that comes some significant challenges
Brits could be in for a treat
There are a few health issues that can arise after being in space for a long period
The International Space Station relies on regular deliveries
We'll probably be fine, the chances of being hit are pretty low
Barry Wilmore, 61, and Sunita Williams, 58, haven't had their feet on solid ground for seven weeks
On the one hand you get to go to space, on the other hand...
Michael Collins said the Moon was 'nothing' compared to what he could see from the spacecraft
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NASA astronaut Frank Rubio said he thought his spine had extended after 371 days in space
An incredible discovery on the Red Planet
No American has spent longer in space that Frank Rubio
Scientists described the discovery as 'really exciting'
Astronaut Mike Massimo first visited space in 2002
Edgar Mitchell had an unusual belief about what our extraterrestrial neighbours are up to
It's expected to be a 50,000-square-metre facility completed with restaurants and living quarters
Scientists have warned that it could threaten the existence of humans altogether
It's definitely NOT aliens... so they say
The NASA astronaut has opened up about his 'sobering realisation'
Take a look at this extraordinary footage of NASA space cadets Peggy Whitson and Shane Kimbrough and see how you feel
Astronauts say the 'overview effect' completely alters the way they view the world
Ron Garan returned to Earth with an entirely new perspective after what he witnessed in space
The huge explosion is said to be happening between now and September