The four astronauts had been living in a simulation in preparation for travelling to Mars
Cady Coleman spent six months living on the International Space Station in 2010
Vanner and Donna Johnson had no idea the test would reveal a truth hidden for more than a decade
A recent study revealed several traits that 'crypto bros' seem to have in common
The simulation began back in June last year
It took three years and two teams of astronomers to find the largest reservoir of water ever detected
A beautiful display in the sky had people scratching their heads at what they were looking at
While some eye colours are more common, others can be very rare indeed and only occur in a small number of people
Chinese rover Zhurong made the discovery on Mars, and it could shed some light on the Red Planet's history
The plant has been found to be able to adapt to 'extreme stress conditions'
The two athletes look remarkably similar, despite not actually being related in any way
Researchers gave a killer whale six human sounds, and what they got in response was incredible - if a bit unnerving
Scientists say bacteria could have survived thousands of years in the frozen wolf's gut
The so-called 'hot tub of despair' apparently 'pickles' animals that get to close to it
The science behind the way time works is fascinating
Scientists think they've cracked the code using sound
If your toothbrush lives in the bathroom, you might want to watch this video
The African country is due to ring in the 2017 New Year this September
Experts claim the need for braces is a modern development
The collaboration between The Nippon Foundation and The University of Japan has proved successful
Experts have finally made headway with fossils found in 1989
Surely this belongs in a movie?
The findings offered conclusive answers on a long-debated topic