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The US keeps millions of chickens in secret farms to make flu vaccines. But their eggs won't work for coronavirus

How history can bring us hope right now

Some Nebraska schools are donating their 3D printers to make supplies for a hospital

Softbank-backed satellite startup OneWeb files for bankruptcy

A picture shows the Eiffel Tower in Paris after it went dark for the Earth Hour environmental campaign on March 19, 2016. / AFP PHOTO / LUDOVIC MARIN (Photo credit should read LUDOVIC MARIN/AFP/Getty Images)

For a brief period tonight, some parts of the world will go dark. It's Earth Hour

A baby Sunda pangolin nicknamed 'Sandshrew' feeds on termites in the woods at Singapore Zoo on June 30, 2017.
Sandshrew was brought to the Wildlife Health and Research Centre on January 16, reportedly found stranded in the Upper Thomson area by a member of the public. Sunda pangolins are listed as critically endangered by the International Union for Conservation of Nature (IUCN). / AFP PHOTO / ROSLAN RAHMAN (Photo credit should read ROSLAN RAHMAN/AFP/Getty Images)

The Covid-19 culprit is us, not pangolins

Left: Arriving at Uranus in 1986, Voyager 2 observed a bluish orb with subtle features. A haze layer hid most of the planet's cloud features from view. Right: This image of Neptune was produced from Voyager 2 and shows the Great Dark Spot and its companion bright smudge.
Credits: Left: NASA/JPL-Caltech - Right: NASA

Scientists found a secret in old Voyager 2 data. This is why we need to revisit Uranus and Neptune

Dr. Sanjay Gupta's coronavirus podcast for March 25: Searching for treatments

How to strengthen your immunity during the coronavirus pandemic: Exercise, meditation, sleep and stress management

SELBY, ENGLAND - MARCH 02: A general view of Drax Power Station on March 02, 2020 in Selby, England. The station is the largest coal-fired power facility in Western Europe and provides about 7% of the country's electricity. The owner of the bio-fuel and coal-fired plant has said it will phase out the use of coal from its Yorkshire power station in March next year. (Photo by Christopher Furlong/Getty Images)

The world is coming together to fight coronavirus. It can do the same for the climate crisis

This transmission electron microscope image shows SARS-CoV-2—also known as 2019-nCoV, the virus that causes COVID-19. isolated from a patient in the U.S., emerging from the surface of cells cultured in the lab. Credit: NIAID-RML

Here is how a virus spreads

Astronaut Scott Kelly on a spacewalk on November 6, 2015, as taken by fellow astronaut Kjell Lindgren.

Living an isolated life: Astronauts, Antarctic doctors and climbers share their advice

How he became a bodybuilder with one arm and no legs

The South will sizzle in summer-like heat through the weekend

¿Cuáles son los próximos proyectos de la NASA en la Luna?

Robots que eliminan virus, bacterias y gérmenes llegan para desinfectar hoteles

mike tyson perro boxea campeon boxeador deportes cnne pkg_00000713.jpg

Mike Tyson demuestra su habilidad intacta jugando con su perro

Wearing a protective suit, a research and development company employee works on the production of coronavirus testing kits in Gebze, northwestern Turkey, Monday, March 23, 2020. RTA laboratories are now producing 500,000 kits per week for export and their tests are being used in 11 countries across Europe, Middle East and Asia. The test takes up to three hours to return results that have "a sensitivity precision of 99.5%," according to the lab's director. For most people, the new coronavirus causes only mild or moderate symptoms, such as fever or coughing. But for some older adults and people with existing health problems, it can cause more severe illness, including pneumonia. (AP Photo/Emrah Gurel)

Why comparing coronavirus outbreaks in different countries can be misleading -- and even da