This image features a deep field view of the Cassiopeia constellation immersed in the glow of ionized hydrogen gas, where the ...

Astrophysicists have long been intrigued by the possibility of dark stars-massive celestial objects fueled not by nuclear fusion but by the enigmatic energy of dark matter. Thanks to images taken by ...

while robbing amateur astronomers—and their children—of faint stars and galaxies lost in the glare. Fortunately, there are solutions that save money and preserve the dark night sky.

Timothy Ferris, in the film Seeing in the Dark The stars seem to change little if at all—night after night, century after century—so people used to assume that they lasted forever. The Greek ...