Cesium beam clocks (left) and hydrogen masers are among the types of atomic clocks used by the National Institute of Standards and Technology (NIST) to determine official U.S. time. J. Sherman, R. Jacobson/National
A drone hovers in airspace outside the safety perimeter surrounding St. Louis Lambert International Airport as an airliner approaches for a landing on March 10. Jeff Roberson/AP Jeff Roberson/AP The Trump administration wants
A Skype logo is seen at the Mobile World Congress 2015 in Barcelona, Spain. The video conferencing app is shutting down on Monday. David Ramos/Getty Images Europe David Ramos/Getty Images Europe Skype, the
This 2018 image shows a 23andMe saliva collection kit used for DNA testing. The California-based company announced this week that it was going into bankruptcy. Eric Baradat/AFP/Getty Images Eric Baradat/AFP/Getty Images The genetic
A Pennsylvania school district is grappling with the fallout caused after middle school students created fake TikTok accounts to impersonate their teachers and post lewd and offensive messages. Getty Images Getty Images A
