#FeatureFridays: Crucial #Spacecraft functions need timekeeping accuracy down to one billionth of a second or less. Three teams at @NASAGoddard are at work to push timekeeping for space exploration to new levels of precision. 🕒
https://t.co/Vqfsu3ugtT
A @UChicago study in @ScienceMagazine shows that declining bat populations in North America have led to increased pesticide use by Chicago farmers, causing a rise in #Infant mortality rates over the last 20 years.
https://t.co/AEXIvvYn97