Learn about the turbulent history of Abell 2029, a galaxy cluster that experienced a collision with a smaller galaxy cluster ...

The night sky is buzzing with celestial activity this month. In addition to the Jupiter opposition, the "beehive cluster" will be visible throughout January, according to NASA. Formally known as ...

Whenever the moon shines near the Pleiades in December and January, it's nearly full. And on Thursday night, Jan. 9, the 10-day old moon will actually pass through the Pleiades. Most North American ...

A team of astronomers has confirmed the presence of a giant radio halo extending across more than 3.3 million light-years ...

A globular cluster glitters with starlight in a new photo from the Hubble Space Telescope. Located 15,000 light-years from Earth, the globular cluster — formally known as Terzan 12 — is nestled deep ...

The Northern Hemisphere’s summer is — by far — the best time to view our galaxy’s rich star fields. And it’s during summer that the spectacular Wild Duck Cluster flies through the Milky Way. German ...

One of the oldest known objects in the universe is wandering around the Milky Way. Star cluster M92, a densely packed ball of stars roughly 27,000 light-years from Earth, is about 13.8 billion years ...