WorldView-4 captured this image of Brasilia on Jan. 11, 2017.

MacDonald, Dettwiler and Associates announced Feb. 24 that it will acquire commercial remote sensing company DigitalGlobe for $2.4 billion, the biggest deal to date in the ongoing consolidation in the Earth imaging market.

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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...