Radiation within the visible spectrum can appear black if it is low in power – more specifically, lower in power than its ...
A big battle is raging over who can control the electromagnetic spectrum’s finite space. Whether you love President Donald J.
By observing tiny ripples in spacetime called "gravitational waves" that propagate away from colliding black holes, ...
Using 20 years of data from the Hubble Space Telescope astronomers have discovered that turbulent stars could be corrupting ...
During the Cold War, American and Soviet scientists embarked on an unprecedented quest to contact extraterrestrials. But ...
The colors of rubies and emeralds are so striking that they define shades of red and green—ruby red and emerald green. But have you ever wondered how they get those colors? Paper-thin optical ...
A new form of black hole archeology, linking spin to gas and dust, has revealed that these cosmic titans spin faster than ...
If an extraterrestrial civilization existed with technology comparable to ours, would they be able to detect Earth?