NASAのインスタグラム(nasa) - 9月16日 04時41分

We started the day by launching space lasers! ?
At 9:02 a.m. EDT, our #ICESat2 satellite launched on an United Launch Alliance (@ulalaunch) #DeltaII rocket from Vandenberg Air Force Base in California for a mission to use lasers to measure the changing height of Earth's ice.
ICESat-2 will send 10,000 laser pulses a second to Earth’s surface and measure the height of ice sheets, glaciers, sea ice and vegetation by calculating the time it takes the pulses to return to the spacecraft. In the blink of an eye, the laser instrument will take 30,000 height measurements, adding a third dimension to flat satellite imagery of Earth. These precise measurements will help researchers track changes in land and sea ice and more importantly, help us understand what drives these changes.

Credit: NASA/Bill Ingalls

#nasa #space #rocket #rocketlaunch #space #spacecraft #lasers #spacelaser #earth #climate #ice #glaciers #sea #ulalaunch #deltaII

[BIHAKUEN]UVシールド(UVShield)

>> 飲む日焼け止め！「UVシールド」を購入する