Watch the last flight of the Delta II rocket as it puts a laser-pulsing satellite into orbit

<em>A Delta II launching from Vandenberg Air Force Base.</em>” src=”https://cdn.vox-cdn.com/thumbor/6SIWTS1E6MzScBHsYhU_lKLcrY8=/54×0:2003×1299/1310×873/cdn.vox-cdn.com/uploads/chorus_image/image/61405771/25233966507_af52007349_o.0.jpg”></p>
<p>Tomorrow morning, a nearly 30-year-old rocket will take its final ride to space. The Delta II, a vehicle manufactured by the United Launch Alliance that first launched in 1989, will fly one last time, sending up an Earth-observing satellite into orbit for NASA. If tomorrow’s mission goes well, it will serve as the 100th successful flight of the Delta II in a row, while bringing an end to a rocket that has launched rovers to Mars and spacecraft to the asteroid belt.</p>
<p>On board this last flight is <a href=NASA’s ICESat-2, a satellite that’s tasked with measuring how the land and sea ice around Earth’s poles change over time. It’s a follow-up mission to the original ICESat spacecraft, which observed Earth’s ice transformation from 2003 to 2009. Both…

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Author: Loren Grush

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