Carla Accardi, “Segni verdi” (1967). Enamel on sicofoil, 63 x 43 5/16 inches. (Click to enlarge) (Courtesy Sperone Westwater, New York) Sometimes the quietest and most unassuming exhibitions turn out ...

A spike in UFO sightings since the 1960s was caused by the US military testing spy planes and space technology, according to a Pentagon report. The report, which was presented to Congress on Friday, ...

Aliens might be transmitting communications signals to each other across exoplanets, some astronomers think. Since these signals are likely sent as narrowband radio waves, we may now have a way to ...