On Aug. 21, Pengyi Li walked to his gate at Honolulu International Airport, ready to board a flight to Hong Kong. Before he could get on the plane, federal agents arrested the 33-year-old Chinese national.
SpaceX isn’t just launching its third Falcon Heavy rocket tonight—it’s also launching the second one. Two of the three rocket boosters on the US Air Force mission are being re-used after they carried satellite
One of the best ways to figure out how to respond to the tremors deep inside our planet is to observe their effects from far away in outer space. Thanks to the use of satellite imagery, organizations with