来自MSN11 个月
Pentagon's Roswell UFO report is 'bogus' say ex-NASA experts as famous case back in spotlight
Flew regular sonobuoy up in cluster of balloons." The NASA engineer, who wished to remain anonymous, said: "If he was just flying a rubber balloon cluster with a sonobuoy (a thin, three-foot-long ...
China fitness KOL warned of explosion risk by using helium balloon to lighten load on hikes
Another factor contributing to this novel mountain climbing method is the Hollywood film Up which showed a cluster of ...