Getting ready for Mars on the Space Station

From disrupted biological clocks to radiation and contamination hazards, Europe is running experiments on the International Space Station to take human exploration one step closer to Mars.

Video: 100 years of gravity

One hundred years ago this month, observations performed during a total solar eclipse proved for the first time the gravitational bending of light predicted by Albert Einstein's new theory of gravity, general relativity. ...

SpaceX launches first 60 satellites of its internet network

SpaceX has launched a rocket carrying the first 60 satellites of its "Starlink" constellation, which is intended to provide internet from space in an array that could one day contain over 12,000 orbiting transponders.

Clocks, gravity, and the limits of relativity

The International Space Station will host the most precise clocks ever to leave Earth. Accurate to a second in 300 million years the clocks will push the measurement of time to test the limits of the theory of relativity ...

Detecting bacteria in space

Scientists at Université de Montréal and McGill University have pioneered and tested a new genomic methodology which reveals a complex bacterial ecosystem at work on the International Space Station.

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