IFLScience20 小时
This Skinny Spy Drone Could Someday Fly For 365 Days Without A Break
A new spy drone with an unusually slender design has been cruising through Earth’s stratosphere in its latest test flights.
IFLScience21 小时
Even More Terracotta Army Soldiers Unearthed At Tomb Of China's First Emperor
At least three Terracotta Warriors, three terracotta horses, and two chariots have been recovered from Pit No. 2 near the ...