“What you’re often doing in exposure therapy is watching yourself watch the world, because most of us, when we’re feeling anxious, only attend to threatening cues in our environment,” Isabel Granic, director of Games for Emotional & Mental Health Lab at Radboud University, tells me.
Two years ago, the Event Horizon Telescope (EHT) made headlines with its announcement of the first direct image of a black hole.Now the EHT collaboration is back with another groundbreaking result: a new image of the same black hole, this time showing how it looks in polarized light.
Hawking and others sought to describe matter in and around black holes using quantum theory, but they continued to describe gravity using Einstein’s classical theory—a hybrid approach that physicists call “semiclassical.” Although the approach predicted new effects at the perimeter of the hole, the interior remained strictly sealed off.
I send my address to people in text messages, I type certain URLs in Chrome's address bar, and I send the same email to every person that joins the group I lead at church.
Illustration: Samuel Velasco/Quanta Magazine, Virgo/Frank Elavsky, Aaron Geller/NorthwesternAlas, the flirtation with primordial black holes soured in 2017, after a paper by Yacine Ali-Haïmoud, an astrophysicist at New York University who had previously been on the optimistic Kamionkowski team, examined how this type of black hole should affect LIGO’s detection rate.
Thus, generations of physicists have looked to black holes for clues about the true, quantum origin of gravity, which must fully reveal itself in their hearts and match Einstein’s approximate picture everywhere else.
The simplest way to project an image onto a screen is with a pinhole.It seems magical, but the light from that hole would project an image of the outside world onto a wall in the room.
What Really Happened: With social distancing and self-quarantining becoming the norm around the world, the internet is becoming even more important in people’s lives as a tool with which to communicate, with platforms like Instagram, WhatsApp, and Facebook assuming even more central roles in how we talk to each other and share information—which makes it a problem when things start to go inexplicably wrong, disrupting that communication in worrying ways.
Photograph: NASA/JPL-Caltech/SwRI/MSSSOne of the decade’s most thrilling moments in space happened in 2015 when NASA’s New Horizon’s spacecraft flew past Pluto, making it the first and only mission to ever visit this gorgeous dwarf planet.
Perhaps you even know about things like event horizons, the boundary outside of which escape becomes possible, and gravitational waves , the ripples that black holes generate in the cosmic fabric when they collide.
Jeff Steinhauer makes tiny scale models of black holes in his lab out of rubidium atoms.In another experiment involving cold atom blobs, physicists at the University of Chicago simulated a different extreme environment—what it would be like for a person to accelerate to billions of g’s.
It would seem, then, that the aye-aye (so named because of its cries) wanders the forests of Madagascar giving the world the highly elongated finger .But now, a discovery that really ruins that gag: While exploring the anatomy of the aye-aye’s forearm and hand, a group of researchers discovered the critter has tiny pseudothumbs that likely help it grip branches.
Thirty-foot robots are printing actual rockets, a popular game has vanished, and a marathoner has done the (nearly) impossible.You can sign up right here to make sure you get the news delivered fresh to your inbox every weekday!
This speed limit can theoretically be exceeded if the matter is collapsing fast enough; the Basu and Das model suggests black holes were accreting matter at three times the Eddington rate for as long as the chain reaction was happening.
The fake force allows a rotating reference frame to act like a stationary one. In the non-rotating frame, the ball just moved along with a constant velocity—just as it should with no net forces acting on it.
To pull it off, the Event Horizon Telescope team collaborated with scientists everywhere, arraying together several of the world's largest radio telescopes and turning the planet into one giant eye-on-the-far-away-sky. A mere 8,000 light years away in our home galaxy is another black hole, this one part of a binary star system called V404 Cygni.
Space Photos of the Week: Black Holes and Jellyfish Rainbows. This is a big week for space—including news from our local planets, crazy rockets from NASA making jellyfish rainbows in the sky, and oh, no big deal, just the first-ever photo of a black hole.
You can read her news story about the upcoming Uber IPO right here on WIRED .Also on this week’s pod, Mike, Lauren, and Arielle discuss the first photo of a black hole, the latest privacy concerns around Alexa devices, and some upcoming changes to Facebook’s News Feed.
The First Black Hole Photo, Facebook Changes, and More News. This may be good at stopping some of the viral fake news the platform has become famous for, but bad for the smaller outlets that have optimized their content specifically for Facebook.
This image shows the material around a super massive black hole in the center of a galaxy some 55 million light-years away. For the stuff around the black hole, it's not a visible light image.
The picture, taken over 5 days of observations in April 2017 using eight telescopes around the world by a collaboration known as the Event Horizon Telescope, depicts luminous gas swirling around a supermassive black hole at the center of M87, a galaxy 54 million light years away.
A new study funded by NASA and the National Science Foundation used the distribution of dark matter in young galaxies to better understand what could have been feeding these dense objects so early on.
(He balances his craving for hard data by sorting roads into “jolties,” “wavies,” and “smoothies.”) Lots of tech players are looking at potholes, including HERE Technologies, which uses its mapping vehicles to track road quality, among other things.
Pinball in space: NASA’s Chandra X-ray Observatory found jets of particles and energy streaming from a black hole, only to run into a wall of gas and then bounce back toward the region they came from.
Ahmed Almheiri , Xi Dong and Daniel Harlow did calculations suggesting that this holographic “emergence” of space-time works just like a quantum error-correcting code.
To turn the quasar off, all of that material would have to swirl inward and fall onto the black hole — a process that calculations and even observations suggest should take tens to hundreds of thousands of years.“There’s no way that the accretion should be able to shut down as quickly as we’ve seen it do,” said Paul Green, an astrophysicist at the Harvard-Smithsonian Center for Astrophysics.