Science and Technology

The FDA says esketamine, an antidepressant derived from the anesthetic and party drug ketamine, can now be prescribed on its own. It was approved in 2019 to treat severe depression.

A new analysis suggests saber teeth were highly specialized for puncturing prey, ultimately at the cost of durability.

The order follows TikTok going dark for about 14 hours after the Supreme Court upheld a law prohibiting the service from operating in the U.S. unless it breaks away from its parent company in China.

Trump says Americans should look to the stars, by sending astronauts to Mars.

President Trump pledged to change the name of two natural landmarks in his second inaugural address. Can he do that?

TikTok is back online in the U.S. after going dark for about 14 hours. The blackout affecting 170 million American users was lifted after President-elect Trump vowed to pause the federal ban.

The president-elect said he will issue an executive order Monday to delay the ban while he brokers a sale. The app has returned on web and mobile, but is not available in Apple and Google's stores.

The ash and debris created during the burns could be loaded with dangerous materials. Experts suggest taking care.

The app had more than 170 million monthly users in the U.S. The black-out is the result of a law forcing the service offline unless it sheds its ties to ByteDance, its China-based parent company.

President-elect Donald Trump spoke on the possibility of delaying a ban less than 24 hours from when the social media app is expected to shut down.