Live coverage of the countdown and launch of an H-2B rocket with Japan’s ninth H-2 Transfer Vehicle on a resupply mission to the International Space Station. Text updates will appear automatically below; there is no need to reload the page. Follow us on Twitter.
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Scientists eager to renew global ice measurements with ICESat 2 mission
The satellite awaiting launch early Saturday from California aboard the final flight of the venerable Delta 2 rocket should allow scientists to more precisely track changes in our planet’s ice sheets, using six green laser beams to chart the height and slope of polar ice and glaciers, providing a key input into climate change research.