Headlines edition

Friday headlines: We love salt.

Before Facebook, before Cambridge Analytica, Peter Thiel's Palantir began mining your data, and it's never stopped.

Online echo chambers aren't real. Research shows social media exposes us to more perspectives, not fewer.

A nascent social network, Minds, represents a post-Facebook future where users are paid with Ethereum-based tokens.

One of the difficulties of not having proper cell phone service is it can be hard to find your friends (generally the only moments where I felt safe or comfortable throughout the weekend), so that means you have to rely on bystanders. Coachella is a magnet for sexual predators who presume dancing is consent.

Drug education at a New York City high school focuses on real dangers without resorting to fear-mongering.

Happy 4/20: Historically racist in the US, the word "marijuana" originated in Mexico as a term of rebellion against Europeans.

Related: Photos from a year in the lives of northern California’s clandestine marijuana farmers.

One thing many Americans don’t realize is that the nightmare at Fukushima is continuing right now... They have reduced the flow, but there are still several tons every day of radioactive water that go into the ocean. William T. Vollmann is here for your nightmarish climate-change scenarios.

Scientists are shocked to discover 30% of the Great Barrier Reef died during a nine-month heatwave in 2016.

Last weekend a massive asteroid soared frighteningly close to Earth; astronomers saw it just hours before the flyby.

New York City’s mice carry viruses—and in some cases, antibiotic-resistant bacteria—but there's no human transmission evidence.

As humans proliferated across Earth, large mammals disappeared, probably because they were easier to hunt.

The US throws aways 150,000 pounds of food daily—mainly by healthy Americans discarding fruits and vegetables.

Performing backflips, opening doors—whatever. Researchers programmed a robot to assemble an Ikea chair.

Aerial photos of Mediterranean salt ponds show the otherworldly colors left behind by salt-loving microorganisms.

Related: Marshall Sokoloff’s “Salt” captures the brilliantly distressed hulls from a Toronto harbor.

An illustrated guide to essential literature on Los Angeles art.

In a lawsuit with an injured audience participant, David Copperfield was ordered to reveal a famous magic trick.

Created with imagery from the Hubble Telescope, an interactive journey to the Orion Nebula to witness a supernova.