Some people prefer one over the other all day, every day, and they're wrong. The enlightened among us know the truth: It's best to use light mode when it's light and dark mode when it's dark. That's ...

The detection of dark matter, an elusive form of matter believed to account for most of the universe's mass, remains a ...

Then, last year, the Dark Energy Spectroscopic Instrument uncovered a hint that all is not what it seems. Sat atop Kitt Peak in Arizona, DESI studies the light from stars each clear night with an ...

Royalty-free licenses let you pay once to use copyrighted images and video clips in personal and commercial projects on an ongoing basis without requiring additional payments each time you use that ...

Royalty-free licenses let you pay once to use copyrighted images and video clips in personal and commercial projects on an ongoing basis without requiring additional payments each time you use that ...

We collaborate with the world's leading lawyers to deliver news tailored for you. Sign Up for any (or all) of our 25+ Newsletters. Some states have laws and ethical rules regarding solicitation ...

It is because of this (and the few other sources of light at the time) that this period is called the Cosmic Dark Ages. Over time, sufficiently energetic ultraviolet radiation from the first stars ...