With picks across nearly 1,000 episodes, there is so much Star Trek to watch — and watch again. Here are our top 10 favorite rewatchable Star Trek episodes.

An ancient, fast-feeding quasar is breaking the rules of how black holes consume matter and generate galaxy-shaping jets.

North America's Premier Fulldome Festival Returns April 23-26 in Boulder, Colorado This year's selections reflect a ...

An international team of astronomers has discovered a distant planetary system that challenges long-standing theories of how ...

Astronomers report a supergiant star in the Andromeda Galaxy, M31-2014-DS1, collapsed directly into a black hole without a supernova, confirming predictions of failed stellar explosions.

Drawing together leading experts from across the field, an international collaboration of cosmologists has created a unified approach for measuring the value of the Hubble constant. Published in ...

Scientists suspect that a rapidly spinning, highly magnetic neutron star, or "pulsar," dwells at the heart of the Milky Way.

Astronomers have just identified what appears to be a cosmic anomaly: a faint galaxy with so few visible stars that, according to calculations, as much as 99.9 percent of its mass is dark matter. The ...

Detected through its globular clusters, the galaxy contains just six million suns’ worth of starlight and is composed of ...

How big would a telescope need to be to see Earth’s dinosaurs from 66 million light-years away? Think big—and then think ...

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