Learn about the filters you’ll use most often and how they work.

In news that is sure to delight fans of a certain Gary Larson cartoon turned meme about the limitations of bovine cognition, ...

Gemstones like precious opal are beautiful to look at and deceivingly complex. As you look at such gems from different angles, you'll see a variety of tints glisten, causing you to question what color ...

Astronomers announced the discovery of a starless cloud of hydrogen gas, a pristine relic of the cosmos that is almost as old as time itself.

The gravitational lens JVAS B1938+666 consists of massive bodies ranging from 6.5 billion to 11 billion light-years away, ...

A newly discovered celestial object may be a starless cloud that could change how astronomers understand dark matter.

The Circinus galaxy, a galaxy about 13 million light-years away, contains an active supermassive black hole that continues to ...

Trump’s envisioned multilayered “Golden Dome” could include space-based sensors to detect missiles. They could reduce the U.S ...

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Data centers, power costs in the mix as government regulators scrutinize NorthWestern’s transactions with two Washington utilities.

A federal judge says marriage and the alleged embrace of a monogamous lifestyle cannot prove the innocence of a man charged ...