Rivko Knox, a volunteer with the League of Women Voters in Phoenix, and other voters sued Arizona over a law that bans the third-party collection of early mail-in ballots. The issue is now before the Supreme Court.
AP Photo/Anita Snow
The U.S. Supreme Court is considering whether a ban on the third-party collection of mail-in ballots is legal. The practice is allowed in 26 states.
A volunteer looks for waterbirds at Point Reyes National Seashore in California during the National Audubon Society’s annual Christmas Bird Count.
COVID-19 kept many scientists from doing field research in 2020, which means that important records will have data gaps. But volunteers are helping to plug some of those holes.
The FBI says armed protests are planned at all 50 state capitols ahead of President-elect Joe Biden’s inauguration.
Paul Weaver/SOPA Images/LightRocket via Getty Images
Far-right activists and white supremacists may choose to create what they call their "1776 moment" closer to home.
Many people who say they have seen UFOs are either dog walkers or smokers.
Aaron Foster/THeImage Bank/Getty Images
Scientists are not convinced by the current evidence of UFOs. That doesn't mean that they don't exist. But have Americans' belief in UFOs gone from science to a new religion?
Rapid tests for COVID-19 are easy to administer and give fast results.
AP Photo/Julio Cortez, File
In September, production of rapid tests really ramped up in the US. But due to low accuracy and massive numbers needed, these tests alone are unlikely to have much of an effect on the pandemic.
There’s valuable data on the spread of COVID-19 in this wastewater.
Montgomery County Planning Commission
As the world waits for vaccines against COVID-19, testing wastewater can give communities and smaller locales, such as school districts, valuable signals about infections trends.
Nursing home aides have protested working conditions that can push them to work while sick.
Alejandra Villa Loarca/Newsday via Getty Images
Over one-third of America’s COVID-19 deaths have been nursing home residents. Employee policies, particularly for low-paid aides, have sharply raised the risk.
A starchart by Alexander Jamieson from 1822 showing the constellation Cetus, the Sea Monster. Cetus is located in the region of the sky known as the Water, along with other watery constellations such as Aquarius, Pisces and Eridanus.
New mathematical technique enables astronomers to predict the whereabouts of missing worlds around nearby stars.
Sally Chen, an organizer with the Harvard Ethnic Studies Coalition, speaks through a megaphone during a rally with other students in 2019.
David L. Ryan/The Boston Globe via Getty Images
Ethnic studies were born out of resistance. Now, the courses often face resistance themselves – from white students. Is making these classes mandatory the way to go? A scholar weighs in.
Falling into a black hole is easily the worst way to die.
John M Lund Photography Inc/Getty Images
The scariest beast in the universe has an insatiable appetite and shreds its victims.
The Spike protein on the surface of SARS-CoV-2 must bind to proteins on the surface of human cells to trigger an infection.
KTSDESIGN/SCIENCE PHOTO LIBRARY/Getty Images
Scientists in the UK and Germany discovered a new doorway that the COVID-19 virus uses to infect human cells. This reveals new therapeutic possibilities for blocking the virus.
Light is key to ultrasensitive chemical sensors.
Kwanchai Lerttanapunyaporn/EyeEm via Getty Images
An optical sensor that can detect individual molecules promises early detection of diseases and environmental contamination.
This artist’s rendering shows OSIRIS-REx spacecraft descending toward asteroid Bennu to collect a sample of the asteroid’s surface.
NASA/Goddard/University of Arizona
OSIRIS-REx will touch down on asteroid Bennu, collect a sample of the dust and begin its journey back to Earth, where scientists will study it, hoping to learn secrets of the solar system's origin.
The spike protein on SARS-CoV-2 interferes with pain perception.
SEBASTIAN KAULITZKI/SCIENCE PHOTO LIBRARY/Getty Images
The SARS-CoV-2 virus usually infects the body via the ACE2 protein. But there is another entry point that allows the virus to infect the nervous system and block pain perception.
A medida que la Tierra se mueve alrededor del Sol, aparecen diferentes estrellas y constelaciones para que pueda disfrutar de nuevas vistas durante todo el año.
Allexxandar via iStock/GettyImages
Si bien los meses de confinamiento por el COVID-19 han frenado muchas actividades, hay algunas que aún podemos realizar sin salir de casa.
High-efficiency showerheads save water and energy.
mppix/iStock via Getty Images
The Trump administration is rolling back a regulation that requires showerheads to conserve water, which saved owners an average of US$70 and nearly 3,000 gallons of water yearly per showerhead.
With the proper equipment, you can enjoy the beauty of the night sky.
Allexxandar via iStock/GettyImages
COVID-19 may have messed up school and shut down a lot of entertainment venues. But you can still brighten things up by doing a little stargazing at night, an astronomer says.
Workers remove the Confederate Soldiers and Sailors Monument in Richmond, Virginia on July 8, 2020.
AP Photo/Steve Helber
Demands to remove, or preserve, the statues polarize communities, rather than building a shared future.
Delegates after Donald Trump accepted the GOP presidential nomination at the Republican National Convention in Cleveland, Ohio on Thursday, July 21, 2016.
Bill Clark/CQ Roll Call/via Getty
Political conventions used to pick presidential nominees in private. Now the public picks the nominee and then the party has a big party at the convention, writes a scholar of US elections.
Workers are seeking credentials to get an edge in the job market.
When lockdowns went into effect earlier this year, interest in massive online open courses, or MOOCs, began to surge. An expert expects the interest to continue.