Last night, NASA reached out one final time to the Opportunity rover on Mars, hoping the golf-cart-sized machine would phone home with good news. Since June, the robot has been unresponsive, likely because a planet-wide sandstorm coated its solar panels in dust. NASA has pinged it over 1,000 times in those gloomy eight months, to no avail. Last ...…

Say this much for the “reproducibility crisis” in science: It’s poorly timed. At the same instant that a significant chunk of elected and appointed policymakers seem to disbelieve the science behind global warming, and a significant chunk of parents seem to disbelieve the science behind vaccines … a bunch of actual scientists come along and poi ...…

The first alert came on January 27. Two small satellites, whirling through Earth's low orbits, had “the potential for a conjunction.” Those are the words Major Cody Chiles, spokesperson for the Joint Force Space Component Command, uses to mean "the chance of a collision." The satellites, one from a company called Capella Space and the other fro ...…

In case you’ve been envying the desert ant Cataglyphis fortis lately, don’t. Skittering around the Sahara Desert, the insect endures temperatures so brutal, it can sometimes only manage foraging runs of 15 minutes before it burns to death. Making matters worse, the heat obliterates the pheromone chemical trails that ants typically lay for each ...…

The Monolithic black rectangle on stage with luminous, bouncing blue dots at eye level was not Project Debater, IBM’s argumentative artificial intelligence. It was just something for an audience to look at while a voice—is it redundant to call an AI’s synthesized voice “disembodied”?—projected over the sound system of the Yerba Buena Center for ...…

On the third floor of a back building on Verily’s South San Francisco campus, ten white machines emit a low-pitched hum. Atop each one sits a plastic container so jammed with tubes and sensors it looks like a protein shake on life support. Inside, beige-colored broth bubbles away while tiny high-res cameras capture the frothy footage and stream ...…

This story originally appeared on Slate and is part of the Climate Desk collaboration. There might be no better monument to the limits of American environmentalism in the climate change era than a parking garage in Berkeley, California. It’s got “rooftop solar, electric-vehicle charging stations and dedicated spots for car-share vehicles, rainw ...…

If you want to watch sunrise from the national park at the top of Mount Haleakala, the volcano that makes up around 75 percent of the island of Maui, you have to make a reservation. Being at 10,023 feet, the summit provides a spectacular—and very popular, ticket-controlled—view. Just about a mile down the road from the visitors’ center sits “Sc ...…

If it’s hard to imagine the sweeping changes proposed in the “Green New Deal” actually happening, don’t blame the Green New Deal. It’s just that it has been so long since any politician suggested something so grand. The wildfires, hurricanes, droughts, and sea level rise that climate scientists have long promised are here, but we could get accu ...…

Given the choice between tossing back a dose of medicine and pushing it through your flesh inside a cold, steel needle, most people pick the pill. Convenience, portability, and lack of skin-stabbiness have made pills the most popular way to administer drugs for the better part of medical history. But not all drugs can survive the corrosive, chu ...…

Last Sunday, as much of the country tuned into the Super Bowl, SpaceX CEO Elon Musk and a crew of engineers were gathered in McGregor, Texas, the small city where the company maintains a rocket test site. For a few seconds in the early evening, the sound of a new engine roared across the flatlands. "First firing of Starship Raptor flight engine ...…

We already know it’s chilly on the moon. A lunar night lasts 14 Earth days, and its temperatures can dip into a cold so punishing it makes the polar vortex look like a hot tub. But yesterday, China’s space agency announced that the frigidity of the lunar night is even more intense than we’d thought: The country’s Chang’e 4 spacecraft recorded a ...…

This story originally appeared on Grist on Jan. 31 and is part of the Climate Desk collaboration. This January should be remembered for its unusual warmth, not its cold. Yes, it’s so cold right now that even hardy Minneapolis is shutting down schools, but even with these few days of extreme cold, Minnesota should end up with a near “normal” mon ...…

This Sunday, the subreddit /r/superbowl will host a gathering of hoo-ligans. They’ll be fans of the Nocturnal Flying League. Real birds of a feather. Starting at 6 pm ET, the Superb Owl community will kick off an Ask Me Anything with biologist James Duncan, who has spent his entire adult life studying owls and a mere three weeks playing football.…

This is not a story about how the polar vortex is bad—bad for the human body, bad for public transportation, bad for virtually everything in its path. This is a story about how one being among us is actually taking advantage of the historic cold snap: Cassie the bipedal robot. While humans suffer through the chill, this trunkless pair of ostric ...…

What beer wants to know is, why do you hate America? How can you just sit in front of the game on Super Bowl Sunday, ice cold domestic lager close to hand, and not consider the future of that great institution? No, not the Super Bowl—the beer. Beer is America. Americans drank 2.9 billion cases in 2017, more than any other alcoholic beverage. It ...…

Global thermonuclear war. The slight possibility that a massive asteroid could boop Earth. Jenga. These are a few of the things that give humans debilitating anxiety. Robots can’t solve any of these problems for us, but one machine can now brave the angst that is the crumbling tower of wooden blocks: Researchers at MIT report today in Science R ...…

Sports teams collect sweat to analyze athlete performance, while companies market sweat replacement drinks and sweat-removal clothing to help keep sprinters, cyclists and tennis players happy. But so far, swimmers have been left high and dry. Today a team of researchers announced they have built a small, flexible, wireless sensor that sticks to ...…

Last Thursday, a shiny new SpaceX Falcon 9 rocket sat perched atop NASA’s historic Pad 39A, at Florida’s Kennedy Space Center, waiting to briefly fire its engines. The exercise was part of a routine pre-launch test. What wasn’t routine was the presence of a Crew Dragon capsule atop the slick black-and-white Falcon.…

Depending on who you are and what you’re into, Earth isn’t particularly habitable. OK, sure, if you’re some kind of polyextremophile microorganism, the world is your oyster. Even oysters are your oyster. You can manage temperatures down to -10 degrees and up to 250 degrees, high salt levels, no light, and a local pH—a measurement of acidity—of ...…

Climate change is the most horrific threat our species has ever known: No matter how powerful you are or how much money you have, our transforming planet is a reckoning for every one of us. But there are degrees to this misery. If you’re perched in a Manhattan penthouse, the effects might not be immediately apparent (because you don’t care or a ...…

Friday morning began with delays at New York’s LaGuardia Airport. That’s not unusual—New York’s airports are famously balky. But this time, the cause wasn't something prosaic, like a blizzard. It was staffing. Because of the federal government shutdown, the airport didn’t have enough Transportation Security Administration agents and air traffic ...…

To anyone reading this on a phone, tablet, laptop, or desktop (so, you know, basically all of you): We need to talk about how we talk about screen use. For too long the conversation’s been stuck on how much time we spend on our devices, and the effect that time has on our well-being. The more salient question for a society in which people’s liv ...…

I get the feeling you don’t dislike rats enough. Because your struggles with the rodents chewing through your house pale in comparison to the problems wrought by rodents chewing through entire island ecosystems. Release just one pregnant rat on an island and soon enough the invasive predators will have decimated that pristine environment like a ...…

To help cure the planet’s ailments, Zhen Dai suggests antacid. In powdered form, calcium carbonate—often used to relieve upset stomachs—can reflect light; by peppering the sky with the shiny white particles, the Harvard researcher thinks it might be possible to block just enough sunlight to achieve some temperature control here on Earth.…

Day after day, you pump carbon dioxide into the atmosphere, whether you’re driving or turning on lights or eating meat. You can’t help it, because really, no human can. But I bet you haven’t stopped to think about how the simple act of pooping is also part of the problem: Worldwide, wastewater treatment facilities account for 3 percent of elect ...…

As flu season nears its annual peak, between eight and nine and a half million people in the US have already been sickened by various strains of the respiratory virus, according to new estimates released Friday by federal health officials. That report, from the Centers for Disease Control and Prevention, also estimates that approximately 100,00 ...…

Even though Earth is floating in the void, it does not exist in a vacuum. The planet is constantly bombarded by stuff from space, including a daily deluge of micrometeorites and a shower of radiation from the sun and more-distant stars. Sometimes, things from space can maim or kill us, like the gargantuan asteroid that wiped out the dinosaurs.…

To get a great job, you’ve got to network—make contacts, know the right people. You know the drill. But a study out today in the Proceedings of the National Academy of Sciences suggests that the kind of networking that works best for men isn’t enough for women. Women need access to key kinds of information that men don’t. And how can they get i ...…

1. Most substances make a clean break between their liquid and solid states. But liquid crystals straddle the boundary: They flow smoothly, like water, while maintaining a crystalline structure. A tiny jolt of electricity aligns the molecules in the same direction and allows them to rotate light—an effect you see when the pixels in your LCD tel ...…