In a proof-of-concept study, researchers report that a simple, low-cost technique provided visual proof that face masks are effective in reducing droplet emissions during normal wear. They found that the …read more Source:: Science
Day: August 11, 2020
Mystery solved: Bright areas on Ceres come from salty water below
by
•Data from NASA’s recent Dawn mission answers two long-unresolved questions: Is there liquid inside Ceres, and how long ago was the dwarf planet geologically active? …read more Source:: Science