Astronomers have officially announced the name of the largest structure in the known universe. It was reported earlier this ...

Look up in Michigan's night sky later this month to catch a rare seven-planet parade. The planets will appear to line up in the sky as they orbit the sun, known as a planetary alignment or planet ...

Astronomers may have discovered the fastest-moving planet system ever found, moving through our galaxy at speeds of at least ...

Harvard and Smithsonian (CfA), and its Submillimeter Array (SMA), were critical for identifying a cache of belts surrounding other stars beyond the sun where comets may reside. Regions around 74 stars ...

The cosmic superstructure Quipu is more than 13,000 times the length of the Milky Way, and its mass is 200 quadrillion times ...

For the first time, astronomers have imaged dozens of belts around nearby stars where comets and tiny pebbles within them are ...