WFIRST
NASA is looking to make changes to the design of the WFIRST mission to reduce its estimated cost from $3.6 to 3.2 billion, while retaining its 2.4-meter main telescope.

A NASA astrophysics mission that avoided cancellation last year could still face budget problems if it evades another termination threat this year, agency officials warned this week.

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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...