Balloons detect mysterious sounds in the stratosphere below the human hearing limit. Scientists can't explain.

Tech Insider
view above a cloudy earth with a blue horizon against the blackness of space and the sun glaring in the upper right
A view from 13 miles above Earth, from one of Sandia National Laboratories’ solar-powered hot air balloons.

Courtesy of Guide Star Engineering LLC

Mysterious object destroyed by a $400,000 Sidewinder missile may have been a hobby group balloon that cost just $12

Tech Insider : Politics
f22 raptor
An F-22 Raptor from the Hawaii Air National Guard's 199th Fighter Squadron returns to a training mission on March 27, 2012, over the Pacific Ocean.

US Air Force Photo

Russian balloons are drifting over Kyiv, likely to fake out its air defenses and force them to waste valuable missiles, Ukraine says

Tech Insider
National Advanced Surface-to-Air Missile System (NASAMS)
National Advanced Surface-to-Air Missile System (NASAMS)

Courtesy of Raytheon Technologies

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