Is This Cigar-Shaped Asteroid Watching Us?

Scientists are tracking it because they think that maybe—just maybe!—it might be.

Dec. 13 2017 6:00 AMAstronomers Just Photographed a Nursery of StarsIt sure sounds cute, but it is really quite violent.
Dec. 11 2017 7:15 PMIs That Starving Polar Bear Dying From Climate Change? Probably Not.Climate change is certainly killing polar bears, but this photo may just depict disease. It can still help us better understand what’s a stake.
Dec. 7 2017 9:10 PMPatagonia Won't Be QuietThe apparel company wants profit and good PR. It also won't back down against the Trump administration.
Dec. 7 2017 5:08 PMThe California Wildfires Have Ravaged These Areas the WorstThe images are like something from an apocalyptic film.
Dec. 6 2017 11:07 PMCould the 17-Foot Python Swallow the Avocado as Big as Your Head?And would it want to?
Dec. 4 2017 4:54 PMTrump’s Cuts to National Monuments Hurt Native Americans MostThis isn’t just about the great outdoors.
Dec. 1 2017 7:12 AMHow to Watch the Only Supermoon of 2017It’s happening this weekend! Finally, something good.
Nov. 28 2017 7:19 PMDid Russians Find Alien Life Clinging to the International Space Station?Almost certainly not.
Nov. 24 2017 9:00 AMREI Shouldn’t Get Anti-Consumerist Credit for #OptOutsideIt’s a marketing campaign to get you to buy more outdoors gear later. 
Nov. 20 2017 2:03 PM2 Million Beautiful Images of Biodiversity Are Now Available for FreeThe Biodiversity Heritage Library’s open-source archive contains wonders of all kinds.
Nov. 16 2017 6:03 PMLifting the Ban on Elephant Trophies Will Probably Help Save ElephantsOur knee-jerk reaction to hunting (and to Trump) ignores good data that suggest hunting works as a means of conservation.
Nov. 16 2017 7:30 AMThe First “Space Nation” Just Launched Its First SatelliteIn doing so, it proved how lawless space still is.
Nov. 15 2017 12:54 PMIn 1770, the Sky Over East Asia Turned Crimson Red for Nine DaysNew documents reveal what caused the event.
Nov. 13 2017 6:45 PMShark With Head of a Snake and 300 Teeth Found Swimming Off Coast of PortugalThe ocean is belching up prehistoric sea creatures left and right.
Nov. 10 2017 5:04 PMHow to Watch November’s Weekend Meteor ShowersIt’s a double-header.
Dec. 12 2017 9:00 AMHumans Run Experiments, a Robot Writes the PaperThe future of automated scientific writing is upon us—and that's a good thing.
Dec. 10 2017 5:51 PMA British Grocer Is Selling an Avocado Without a PitApparently a lot of people are cutting their hands while slicing the fruit.
Dec. 7 2017 7:32 PMDownwind From the FiresMy town was spared by the infernos tearing through Southern California. We’re still in danger.
Dec. 7 2017 12:54 PMWild Animals Do Not Need to Be Saved From FiresSure, the video is cute. It’s also a terrible precedent, please stop sharing it.
Dec. 5 2017 12:32 PMWhy Can You “Hear” This GIF?Scientists don’t actually know yet. But we have some vague ideas.
Dec. 1 2017 5:55 PMGuys, Glitter Is Not the Real Enemy HereA global ban on glitter would be nice and all, but its impact would be negligible.
Nov. 29 2017 4:05 PMCan You Brew Beer in Space?Budweiser is sending barley seeds into orbit next month. That’s just the beginning.
Nov. 27 2017 1:36 PMReport: Keystone Pipeline Has Leaked Much More Than ExpectedThere was only expected to be a significant leak once every seven to 11 years.
Nov. 22 2017 5:57 AMWhy Do People Applaud When Planes Land?Actually, they don’t. But imagine how annoying it would be if they did.
Nov. 17 2017 5:10 PMA Guide to Understanding a Million vs. a Billion vs. a TrillionIt’s really easy to read past these words, and extremely difficult to internalize how dramatically different these amounts are. These thought experiments can help.
Nov. 16 2017 5:02 PMAn Allegation, Then a Prestigious ProfessorshipIn 2002, Dartmouth was told that psychology professor Todd Heatherton had allegedly groped his graduate student. Afterward, Heatherton’s career ascended.
Nov. 15 2017 4:34 PMWe Just Discovered Another New Planet That Could Host LifeWill this be “the one”? It’s too soon to tell, of course.
Nov. 15 2017 7:30 AMClimate Litigation Needs to Become a Mass MovementEurope is leading by example.
Nov. 13 2017 6:27 PMThree Dartmouth Psychology Professors Are Under Investigation for “Sexual Misconduct”Simine Vazire says one of those men, Todd Heatherton, groped her at a conference in 2002.
Nov. 9 2017 3:46 PMIs a Cat a Liquid?A liquid is traditionally defined as a material that adapts its shape to fit a container. Cats do that. Sort of.