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The World Health Organization is testing three more drugs in a broad search for Covid treatments.

What to Know About Breakthrough Infections and the Delta Variant

Vaccine side effects remain rare and are outweighed by benefits of vaccination, the C.D.C. reported.

New story in Science and Health from TIME: Four Civilian Astronauts. Three Days in Orbit. One Giant Leap. Meet the Inspiration4 Crew

New story in Science and Health from TIME: Meet the All-Civilian Crew of Inspiration 4, From a St. Jude’s Physician Assistant to a Lockheed Martin Engineer

New story in Science and Health from TIME: St. Jude’s Fundraising Chief on Space Missions, ‘Pushing Boundaries’ and a Record-Setting Year

The Delta coronavirus variant puts more children in hospitals, especially in hot spots.

The Delta variant of the coronavirus puts more children in hospitals, especially in hot spots.

New story in Science and Health from TIME: The Latest IPCC Report Says We’re Probably Going to Pass the 1.5°C Climate Threshold. What’s Next?

New story in Science and Health from TIME: The One Silver Lining in the Bleak IPCC Report

New story in Science and Health from TIME: How the Inspiration4 Mission Fits Into the Long History of Civilian Space Travel

New story in Science and Health from TIME: Scientists Are More Certain About the Effects of Climate Change Than Ever. You Can Tell by the Language They Use

The Delta Variant Is Sending More Children to the Hospital. Are They Sicker, Too?