In 1977, astronomers received a powerful, peculiar radio signal from the direction of the constellation Sagittarius. Its frequency was the same as neutral hydrogen, and astronomers had speculated that ...
Credit: Big Ear Radio Observatory and North American AstroPhysical Observatory (NAAPO). The Wow! Signal has captivated the imagination of scientists and the public alike since its detection in 1977.
Some results have been hidden because they may be inaccessible to you
Show inaccessible results