hydrogen maser

The Wow! Signal Deciphered. It Was Hydrogen All Along.

In 1977, astronomers received a powerful, peculiar radio signal from the direction of the constellation Sagittarius. Its frequency was the…

3 months ago

This Star is Blasting Out a Concentrated Jet of Material at 500 km/s

MWC 349A is a star about 3,900 light-years away in the constellation Cygnus. It's huge, about 38 times as massive…

2 years ago