The Brighterside of News on MSN

Physicists measured time without a clock at the quantum scale

Time feels steady and familiar in daily life, but at the quantum level it becomes slippery. That puzzle now has a fresh twist ...
Woman&Home on MSN

How long do LED masks last? I've asked 3 experts, and this was their definitive answer

Light therapy masks are a real skincare investment - but are they a long-term one?