A group of students are carrying out an experiment in space to settle once and for all the validity of the long-held theory that sound cannot be heard in a vacuum. The team from the Cambridge ...

HANOVER, N.H. -- Black holes are regions of space-time with huge amounts of gravity. Scientists originally thought that nothing could esca­­­­­pe the boundaries of these massive objects, including ...

AS he set about cleaning up a few more votes in this week's election, Gerry Adams got the vacuum out. Nothing new there. AS he set about cleaning up a few more votes in this week's election, Gerry ...

This Hubble Space Telescope image shows one of the galaxies in the survey to refine the measurement for how fast the universe expands with time, called the Hubble constant. NASA, ESA and A. Riess ...