The green-and-white banner from an Illinois high school recalls the first Earth Day 50 years ago

Yes, most infectious diseases are seasonal. But waiting for COVID-19 to wane on its own is a bad idea

Apollo 15 Command Module Pilot Alfred "Al" Worden, an aviator, engineer and storyteller passed away on March 18, 2020

It’s been 180 years since Charles Wilkes voyaged to the Antarctic continent and his journey has never been more relevant

Dineobellator was a formidable predator and boasts the battle scars to prove it.

Past public health crises inspired innovations in infrastructure, education, fundraising and civic debate

So-called gynandromorphs are rare, but they can teach us a lot about development and evolution

Fragments of a comet likely hit Earth 12,800 years ago, and a little Paleolithic village in Syria might have suffered the impact

Fossil teeth uncovered in Peru reveal that an extinct family of primates, thought to have lived only in Africa, made it across the ocean

The Smithsonian's Earth Optimism Summit will now stream online starting this Earth Day; tune in and be inspired

A new study of ancient climate has a dire warning about today's dry conditions

While the virus seems capable of infecting some pets and wild animals, these cases probably aren’t occurring often

An American doctor operating out of Philadelphia made clinical observations that where patients lived, not how they lived, was at the root of the problem

Smithsonian Secretary Lonnie G. Bunch III says: ‘It’s time to put our heads down, and work’

The bird, decimated by poachers and smugglers, is making a big comeback in the Central American rainforest

The outbreak was far deadlier than COVID-19, but the empire survived

Meet the hugely influential polymath, who foretold of climate change and inspired artists, writers and even the founder of the Smithsonian

The newfound 'invisible' object is only 1,000 light years from home

Computers, mobile phones and all other electronic devices contain thousands of transistors, linked together by thin films of metal. Scientists have developed a method that can use the electrons in a plasma to produce these films.

Researchers have developed a safe and accurate 3D imaging method to identify sperm cells moving at a high speed. The new method has the potential to significantly improve IVF treatments.

Scientists have presented a non-contact method for detecting the state of charge and any defects in lithium-ion batteries.

A lipid metabolism enzyme controls brain stem cell activity and lifelong brain development. If the enzyme does not work correctly, it causes learning and memory deficits in humans and mice, as researchers have discovered. Regulating stem cell activity via lipid metabolism could lead to new treatments for brain diseases.

Researchers discover what is happening at the cellular level when Castleman patients experience a cytokine storm.

Scientists have developed a method that combines different resolution levels in a computer simulation of biological membranes. Their algorithm backmaps a large-scale model that includes features, such as membrane curvature, to its corresponding coarse-grained molecular model. This has allowed them to zoom in on toxin-induced membrane budding and to simulate a full-sized mitochondrial lipid membrane. Their approach opens the way to whole-cell simulations at a molecular level.

Millions of people around the world use acid suppressants called proton pump inhibitors for conditions like heartburn, gastritis and stomach ulcers. Researchers at Karolinska Institutet in Sweden now report that how the long-term use of these drugs could increase the risk of developing dementia. Their results are published in the journal Alzheimer's & Dementia.

The brain has a powerful ability to remember and connect events separated in time. And now, in a new study in mice, scientists have shed light on how the brain can form such enduring links.

The Monte Conca cave system in Sicily is showing signs of being altered by pollution from above.

A protein shredder that occurs in cell membranes of brain cells apparently also indirectly regulates the fat metabolism. The shredder, known as gamma-secretase, is considered a possible target for drugs against cancer and Alzheimer's disease. However, the results suggest that such agents may have long-range effects that need to be watched closely.

Scientists have successfully developed a new technique to reliably grow crystals of organic soluble molecules from nanoscale droplets, unlocking the potential of accelerated new drug development.

Regular processes in the environment improve our eyesight.

A research team has good news for patients with copper-deficiency disorders, especially young children diagnosed with Menkes disease.

As interest in the application of plasma medicine -- the use of low-temperature plasma (LTP) created by an electrical discharge to address medical problems -- continues to grow, so does the need for research advancements proving its capabilities and potential impacts on the health care industry. Across the world, many research groups are investigating plasma medicine for applications including cancer treatment and the accelerated healing of chronic wounds, among others.

"For people that already have mental health concerns it might be more escalated and others who have not had mental health concerns are now experiencing (them) because of some of the anxiety and stress that's caused by COVID-19."

Catering companies are having to get creative to stay in business during COVID-19.

The plunge in jobs was 73,800 relative to February, but Saskatchewan saw a shallower decline than any other province as COVID-19 devastates labour markets across Canada.

The "High Quality Camera" unlocks a world of photography options for the Pi.

Consumer Gmail users are seeing a "Google Meet" section in the sidebar.

Google I/O isn’t happening this year, but we’ll get all the normal info next month.

One person is now in charge of Google’s six messaging apps.

Coronavirus restrictions are lifting across the nation, and before long you’ll get back to some normalcy. I’m not taking any chances with bringing germs into my house. Tap or click for the at-home “airlock” trick I use to make sure everything is disinfected, inspired by NASA astronaut Scott Kelly.

The life of a New York video game enthusiast who died from complications of the coronavirus was celebrated with a virtual service on Nintendo’s hit video game: “Animal Crossing: New Horizons.”

Sensors being developed by Airbus and a California-based startup might be able to sniff out COVID-19 in an effort to help prevent its spread.

Future Navy SEALs will conduct combat scenarios six-feet apart, emulate high-risk combat scenarios, study in smaller classrooms and be directed by megaphones at farther distances, because more candidates for the special operations unit are again competing, training and preparing for war following temporary delays caused by COVID 19.

Raise your hand if your inbox is packed. I know mine is. Here are five tips that actually work to get your email in check.

Siemens is preparing for a prolonged economic trough triggered by the COVID-19 pandemic, Chief Executive Joe Kaeser told CNBC on Friday after releasing fiscal second-quarter results.

Siemens has secured a 3 billion euro ($3.25 billion) loan that will be transferred to the group's Energy unit, which is scheduled to be spun off at the end of September, Chief Executive Joe Kaeser told Bloomberg TV on Friday.

Siemens stock surged on Friday after the German engineering company said it was speeding up cost savings to tackle the coronavirus downturn and the flotation of its energy business remained on track.

A court asked the Indian government on Friday to respond to a challenge against its order for compulsory use of a contact tracing app by public and private sector employees returning to work amid the world's biggest coronavirus lockdown.

Tesla Inc has not been allowed to resume operations at its California vehicle factory as local lockdown measures to curb the spread of the coronavirus remain in effect, a county health official said on Friday.

Apple Inc said Friday it will reopen a handful of stores in four U.S. states starting next week, in the first resumption of physical retail operations since the iPhone maker shuttered all U.S. stores in mid-March.