Delta 2 ICESat-2
A Delta 2 rocket lifts off for the final time Sept. 15, carrying NASA's ICESat-2 satellite.

A Delta 2 rocket lifted off Sept. 15 carrying a NASA Earth science satellite on the final flight of a vehicle whose heritage dates back to the beginning of the Space Age.

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Jeff Foust has more than a decade of experience writing about space policy, entrepreneurial ventures and regulatory affairs. In 2001, he established spacetoday.net to aggregate and summarize the day's space-related news stories. In 2003, he started The...