Since confirming the existence of ripples in the fabric of space-time some five years ago, the LIGO/Virgo collaboration has advanced gravitational-wave research by leaps and bounds. ...read more
America’s second satellite stopped communicating with Earth in 1964, but it will stay in orbit for centuries. ...read more
A new way to think about light pollution in Europe and the U.S. should help policy makers take its measure. But if they can't solve it, what hope for more complex problems like global heating? ...read more
With Siberia burning under unprecedented heat, our planet experienced a virtual tie for warmest June on record ...read more