Pettit was in space for seven months before touching back down on his 70th birthday
Professor Nikku Madhusudhan of Cambridge University was the lead researcher on the 'best ever signs of life' study
Physics experts have voiced their worries with attempting to communicate with alien planets
Planet K2-18b is '99.7 percent' likely to have biological life on its surface
Scientists at the University of Cambridge have called the discovery 'a shock to the system'
The photos of Everest were released by an astronaut set to return to Earth this Saturday
The new images were released by NASA
Alexey Zubritsky's arrival on the space station was live streamed
After getting the results, the scientists initially thought 'there might be an error in our method of analysis'
The cause behind the most tragic space accident of all time has been explained
The NASA astronaut has been regularly sharing footage of Earth from space
As David Bowie famously once asked: Is there life on Mars?
Russian cosmonaut Sergei Krikalev spent twice as much time in space than his team had planned
Hopefully, it does prove to be just eight months
Astronauts 'stuck' in space for nine months explain shocking moment they were nearly 'lost in space'
NASA astronauts Butch Wilmore and Suni Williams recalled a harrowing moment in space shortly before docking onboard the ISS
NASA has provided an update on Asteroid 2024 YR4
We're doing a great job of cluttering up space, which is a bad thing
A number of findings were highlighted by NASA in their latest study
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Barry 'Butch' Wilmore and Sunita Williams have done their first sit down interview since returning to Earth
NASA astronauts Barry 'Butch' Wilmore and Suni Williams were stranded for nine months in space
A rock with countless tiny spheres on its surface - but what is it?
Known as SIMP 0136, the $10 billion telescope caught a glimpse of it floating through space all by itself
The universe keeps on coming up with more things to shock us