Mathematicians Settle the Erdős Coloring Conjecture

Fifty years ago, three mathematicians came up with a graph theory problem that they thought they might solve on the spot. A team has finally settled it.

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We’re Starting to See How Covid PPE Litter Affects Wildlife

More than a year into the pandemic, scientists and environmentalists have the first data on where disposable gloves and masks are turning up in ecosystems.

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A Pause on J&J, Preparation for Booster Shots, and More News

Catch up on the most important updates from this week.

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Archaeologists Unearth a ‘Lost Golden City’ in Egypt

The Luxor finding has been called "the second most important archaeological discovery" since King Tut's tomb.

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What Octopus Dreams Tell Us About the Evolution of Sleep

Understanding how other animals dream could help us figure out why it’s so important to the human brain, and why it may have been preserved throughout history.

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Pausing the J&J Vaccine Was Easy. Unpausing Will Be Hard

Johnson & Johnson’s Covid-19 vaccine was supposed to be the uncomplicated one. But even with new data, getting people to trust it again will be tricky.

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The Humble Shrub That’s Predicting a Terrible Fire Season

Chamise may not look (or smell) like much, but it's actually a kind of crystal ball for understanding how badly California might burn.

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Will Future Electric Vehicles Be Powered by Deep-Sea Metals?

Mining companies and marine scientists want to know whether harvesting blobs of useful materials from the seafloor harms ocean life.

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Did This Scorching-Hot Planet Lose—and Regain—an Atmosphere?

A veritable hellscape of an exoplanet is challenging researchers’ assumptions about what types of worlds host atmospheres.

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How Many Homes Could You Power With Free Doughnuts?

Should you get a COVID vaccine? Yes, it will protect you AND protect others to help us move past this pandemic so we can get back to a more normal life. But wait! If you get vaccinated, you can also get a doughnut! At least that's the deal that Krispy Kreme Doughnuts is offering. Once you get your vaccine, you get a doughnut. Oh, it's not just...

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