A double pulsar as a test field for Einstein's theories. (Image: Michael Kramer / MPI for Radio Astronomy)
Albert Einstein's general theory of relativity...
Chemical processes may create self-sustainable and habitable 'bubbles' in the Venusian atmosphere where life can thrive.
It's hard to imagine a more inhospitable world than...
Tomorrow, Christmas Day, the mission of the most powerful space telescope ever built will begin.
Our patience and that of countless others has been put...
A great success, because never before have so many such mysterious galactic nomads been tracked down simultaneously.
By solitary planets we mean solitary, wandering specimens...
NASA releases a bizarre audio clip captured during Juno's brief flyby past the largest moon in our solar system.
Last June, spacecraft Juno skimmed past...