While we continue to see the number of positive and recovered cases change across the world, the COVID-19 pandemic continues to be a threat to everyone’s health and well-being. There’s a global race to produce a vaccine that will be effective in protecting us from the virus and perhaps be our best hope for ending the pandemic.
Standard measurement units like the meter and the kilogram used to be defined by physical objects, such as a prototype bar and a platinum cylinder. As of May 2019, all measurement units are now defined by the cesium atom and the fundamental constants of the universe.
Three thousand meters below sea level, hydrothermal vents spew black smoke into the dark ocean. No light ever reaches these depths, yet surprisingly, these areas are rich with life. Crabs, shrimp, and other small organisms and bacteria call this strange habitat home.