International Space Station.

The White House’s next budget request for NASA will likely include plans to end the agency’s operations of the International Space Station by the mid-2020s, a plan that could create new opportunities for commercial space ventures but has already generated opposition from one key senator.

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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...