Pandemic Lockdowns Did Cut Air Pollution—but With a Catch

Pandemic Lockdowns Did Cut Air Pollution—but With a Catch

Gupta studies air pollution in India, and like many other scientists, he’s been studying how the lockdowns have decreased emissions above urban areas.In Santiago, Chile, researchers studied urban air pollution during those same three months and compared them to the same period during the previous three years.

Physicists Learn to Superfreeze Antimatter (Hint: Pew Pew!)

Physicists Learn to Superfreeze Antimatter (Hint: Pew Pew!)

A big group of scientists centered at CERN, the Swiss particle physics lab, was already the best in the world at making antihydrogen, the antimatter version of hydrogen.

A New Snapshot of a Black Hole Reveals Its Mysterious Physics

A New Snapshot of a Black Hole Reveals Its Mysterious Physics

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.

A Decades-Long Quest Reveals New Details of Antimatter

A Decades-Long Quest Reveals New Details of Antimatter

But whichever model is right, SeaQuest’s hard data about the proton’s inner antimatter will be immediately useful, especially for physicists who smash protons together at nearly light speed in Europe’s Large Hadron Collider.

Sites Have a Sneaky New Way to Track You Across the Web

Sites Have a Sneaky New Way to Track You Across the Web

This week saw the first known appearance of malware written specifically for Apple's M1 processors , in inevitable but still somewhat concerning development, especially given how little time it took the bad guys to adjust to the new ARM-based architecture.

Researchers Are Studying These Worm Blobs to Build Robots

Researchers Are Studying These Worm Blobs to Build Robots

“If you take a blob of these worms and you hold them in your hand, they behave like Silly Putty and they flow through your fingers,” says Saad Bhamla, assistant professor of chemical and biomolecular engineering at Georgia Tech.

The Secret Ingredient That Powers Supernovas

The Secret Ingredient That Powers Supernovas

Whenever theorists tried to model these intricate particle motions and interactions in computer simulations, the supernova’s shock wave would stall and fall back on itself.Only in the last few years, with the growth of supercomputers, have theorists had enough computing power to model massive stars with the complexity needed to achieve explosions.

The True Story of the Antifa Invasion of Forks, Washington

The True Story of the Antifa Invasion of Forks, Washington

A giant white school bus known as Big Bertha puttered into a two-stoplight town far north on the Olympic Peninsula, in desperate need of a new battery, on the very day the town was on alert for a different bus, one full of violent antifa activists ready to riot.

Is Dark Matter Just Black Holes Made During the Big Bang?

Is Dark Matter Just Black Holes Made During the Big Bang?

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.

The Bay Area Just Turned Orange. All Eyes Are on PurpleAir

The Bay Area Just Turned Orange. All Eyes Are on PurpleAir

Drawing crowdsourced data from air quality sensors it sells to the public—ranging between $200 and $300—PurpleAir builds maps that show in real time just how bad a neighborhood like mine is suffering from particulate matter (PM) 2.5 pollution, the particles that make up wildfire smoke.

That Racist Kamala Harris Birther Conspiracy Is Nothing New

That Racist Kamala Harris Birther Conspiracy Is Nothing New

If you take social media at its word, Senator Kamala Harris , the presumptive vice presidential nominee for the Democratic Party, is actor Jussie Smollett’s aunt, thinks white lab coats and Joe Biden are racist, would sign an executive order to confiscate your guns, and is Caucasian.

A Radical New Model of the Brain Illuminates Its Wiring

A Radical New Model of the Brain Illuminates Its Wiring

Phrenology depended on the assumption that different parts of the brain are associated with different traits and abilities, a position called “localizationism.” And the absurdity of skull-measuring did not necessarily invalidate this notion.

Why Wikipedia Decided to Stop Calling Fox a ‘Reliable’ Source

Why Wikipedia Decided to Stop Calling Fox a ‘Reliable’ Source

There simply were too many examples of misleading, inaccurate, and slanted reporting about science and politics for Wikipedia to pass on Fox News articles as part of a broader search for the truth.Search Google News or YouTube or Facebook and you will find plenty of Fox News reporting on politics and science, and why not?

Mad Scientists Revive 100-Million-Year-Old Microbes

Mad Scientists Revive 100-Million-Year-Old Microbes

Elsewhere in the world’s oceans, much of the seafloor sediment is organic matter.There’s no upwelling and much less life at the surface, so much less organic matter is sinking to the seafloor to form sediment.

A Super Sensitive Dark-Matter Search Yields Strange Results

A Super Sensitive Dark-Matter Search Yields Strange Results

More mundanely, the signal could come from contamination inside the experiment.“Despite being excited about this excess, we should be very patient,” said Luca Grandi, a physicist at the University of Chicago and one of the leaders of the 163-person experiment, which is called XENON1T.

On Instagram, Black Squares Overtook Activist Hashtags

On Instagram, Black Squares Overtook Activist Hashtags

As recent protests have spread across American cities following the death of George Floyd, who died in police custody in Minneapolis, organizers have worked tirelessly to share images and information across social media, urging followers to take action.

Lockdown air quality keeps getting better

Lockdown air quality keeps getting better

Air quality scientist Dr Ian Longley has analysed data from the third week of lockdown and found levels of nitrogen oxides, mostly caused by vehicle exhaust, have fallen between 83 and 91% of normal at most sites.

Why Do Matter Particles Come in Threes?

Why Do Matter Particles Come in Threes?

In the 1970s, when physicists first worked out the standard model of particle physics—the still reigning set of equations describing the known elementary particles and their interactions—they sought some deep principle that would explain why three generations of each type of matter particle exist.

Physicists Take Their Closest Look Yet at an Antimatter Atom

Physicists Take Their Closest Look Yet at an Antimatter Atom

Publishing in Nature today, physicists working on a CERN experiment called ALPHA have measured new properties of antihydrogen, the antimatter twin of the hydrogen atom.For the experiment, ALPHA’s physicists measured part of antihydrogen’s spectrum, the signature light that quantum particles emit.

2020 in Science: A SpaceX Bonanza, Lab-Grown Brains, and More

2020 in Science: A SpaceX Bonanza, Lab-Grown Brains, and More

The other was a tax credit that allowed businesses and individuals to deduct 30 percent of the cost of installing new solar panels from their taxes.After that, individuals won’t receive any tax credits for installing solar on their homes, and business owners will receive a paltry 10 percent.

Room to Breathe: My Quest to Clean Up My Home's Filthy Air

Room to Breathe: My Quest to Clean Up My Home's Filthy Air

That red light was a warning: I had Poor Air. The Airthinx uses nine built-in sensors to measure key air quality indicators.I opened the Airthinx app to see that my Indoor Air Quality score was 72 out of 100.

Unprecedented carbon monoxide readings measured in Central Otago

Unprecedented carbon monoxide readings measured in Central Otago

Dr Longley said concentrations started rising last Tuesday and Wednesday and by Thursday they were three to four times higher than normal across Auckland, Northland, Waikato, Manawatu and Hawke’s Bay. In summer particulate matter levels in New Zealand towns and cities are typically 10-20 micrograms per cubic metre.

Are Saturn’s Rings Really as Young as the Dinosaurs?

Are Saturn’s Rings Really as Young as the Dinosaurs?

Previously, planetary scientists had assumed that Saturn’s rings were as old as the solar system itself—about 4.5 billion years old.“Every new exciting result gets challenged,” said Burkhard Militzer, a planetary scientist at the University of California, Berkeley and a co-author of the Science paper.

Measurements Are Often Full of Lies—and That's OK

Measurements Are Often Full of Lies—and That's OK

Recently in my physics lab, students were having trouble with the difference between mass and weight .Weight is a measure of the downward force an object exerts on whatever is supporting it.

Here’s What Happens When You Leave Weed Up Your Nose for 18 Years

Here’s What Happens When You Leave Weed Up Your Nose for 18 Years

Doctors excavated from the man's right nasal cavity a 19 mm by 11 mm rock-hard mass—the calcified remains of a small amount of marijuana he tried to smuggle into prison a startling 18 years earlier.

Physicists Get Close to Knowing the Mass of the Neutrino

Physicists Get Close to Knowing the Mass of the Neutrino

Its measured mass would also serve as a check on cosmologists’ theories for how the universe evolved.“Depending on what the mass of the neutrino turns out to be, it may lead to very exciting times in cosmology,” said Diana Parno, a physicist at Carnegie Mellon University and a member of the KATRIN team.

Fractal Patterns Offer Clues to the Universe's Origin

Fractal Patterns Offer Clues to the Universe's Origin

“If you start far from equilibrium, like in the early universe, how does the arrow of time emerge, starting from first principles?” said Jürgen Berges, a theoretical physicist at Heidelberg University in Germany who has studied this problem for more than a decade.

Nintendo's Reportedly Fixing Those Broken Joy-Cons for Free

Nintendo's Reportedly Fixing Those Broken Joy-Cons for Free

Well, we have some new details on Google Stadia 's approach to the cloud, a look at Nintendo's evolving customer service procedures, and a very good game recommendation. Remember last week, when I talked about Joy-Con drift, a huge problem affecting a lot of people's Nintendo Switch controllers?

Where Do Supermassive Black Holes Come From?

Where Do Supermassive Black Holes Come From?

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.

Spider-Man: Far From Home Just Made Half a Billion Dollars

Spider-Man: Far From Home Just Made Half a Billion Dollars

No matter how good your Fourth of July was, we venture it wasn't as great as Peter Parker's holiday weekend. Spidey's latest flick, Spider-Man: Far From Home , brought in more than half a billion dollars globally in just a few days, netting the web-slinger the biggest six-day opening weekend ever for a movie released on Tuesday.