Natural particle accelerator more powerful than the Large Hadron Collider found in the Milky Way
Is there almost nowhere left for aliens to hide? We've surveyed the galaxy far better than we thought
How cold is space and what would happen to a human without a spacesuit?
A total solar eclipse will darken the skies over Spain, Iceland, and Greenland in one week: Will it be visible in Armenia?
Europa's ocean may harbour signs of life – but reaching them will be extremely difficult
