science

Fossilized footprints discovered in New Mexico indicate that early humans were walking across North America around 23,000 years ago.

The Biden administration is slashing the use of hydrofluorocarbons, or HFCs, potent climate-warming chemicals used in air-conditioning and refrigeration.

Travel companies and attractions in the United States can legally require travelers to wear masks and show proof of vaccination to enter.

The CDC’s vaccine advisory committee is now expected to vote Thursday afternoon on the FDA’s proposal.

The U.K. has released its plan to make the country a global “artificial intelligence superpower”, seeking to rival the likes of the U.S. and China.

The U.S Federal Court of Claims released a redacted version of the lawsuit filed in August by Jeff Bezos’ Blue Origin against NASA.

A growing number of tech billionaires have decided they want to use their enormous wealth to try and help humans “cheat death.”

Following this year’s focus on conservation, the Bezos Earth Fund said it will support landscape restoration and food system transportation in coming years.

Pfizer and BioNTech tested a two-dose regimen of 10 micrograms — about a third the dosage used for teens and adults — administered three weeks apart.

“We’re fighting against what feels like a ticking time bomb,” said Natalie Sweet, an 18-year-old climate activist. Here’s how she finds courage and resilience.

California firefighters are wrapping the bases of several sequoias, including the world’s largest tree, in fireproof aluminum blankets as a blaze approaches.

The House Oversight Committee is probing Exxon, BP, Chevron, Shell and lobbying groups over climate disinformation.

Hundreds of birds migrating through New York City this week died after crashing into the city’s glass towers, a mass casualty event spotlighted by an NYC Audubon volunteer’s tweets showing the World Trade Center littered with bird carcasses. This week’s avian death toll was particularly high, but bird strikes on Manhattan skyscrapers are a persistent problem that NYC Audubon has documented...

When deciding how you feel about boosters, here’s a fundamental thing you can’t forget that sometimes gets lost in the conversation.

SpaceX is set to make history once again, as Elon Musk’s space company prepares to launch a four-member nonprofessional crew to orbit.

A global study has found young people are suffering “profound psychological distress” due to climate change and government inaction on the crisis. 

Inbound flights of Afghan refugees to the United States will remain suspended for at least a week, a White House spokeswoman said Monday.

Tech entrepreneur Ben Lamm is helping fund a project by Harvard geneticist George Church to revive the woolly mammoth by genetically engineering Asian elephants.

An expert review of data concludes Covid vaccine boosters are not needed at this time for the general public, a group of U.S. and international scientists said.

Workplace disputes are emerging between those who are vaccinated against Covid and those who are not.