Should you stop using preventive flea treatments on your pets?

A Katalyst engineer runs tests on LINK while the satellite is inside the Pegasus XL rocket attached to the Stargazer aircraft at NASA’s Wallops Flight Facility on the evening of Tuesday, June 16, 2026.

South Korea registered its highest temperature since records began more than a century ago on Sunday, as authorities warned people to “immediately” stop all outdoor activities in affected areas.

Cells sitting side by side in the same tissues are not identical. Each cell carries its own subtly different chemical signature—a hidden individuality that can reveal how diseases take root and spread. Now, researchers from the University of Osaka have…