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Why scientists lost track of a satellite in space for 25 years

This cosmic cold case file just got hot. A satellite called S73-7 that had been missing since the 1990s mysteriously turned up again this week, raising the question of how the Department Of Defense lost this interstellar probe in the first place.

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Rocket cam takes you aboard final launch of ULA s Delta IV Heavy (video)

Rocket cam takes you aboard final launch of ULA s Delta IV Heavy (video)
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Inside SpaceX s plans to build network of spy satellites as US Space Force looks to take on Chinese kill web

SPACEX is reportedly building a fleet of spy satellites, with defence giant Northrop Grumman, as part of a secret deal with a US intelligence agency.I

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Our world in photos: April 10

Our world in photos: April 10
brooklyneagle.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from brooklyneagle.com Daily Mail and Mail on Sunday newspapers.

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Heavy history: ULA launches final Delta rocket after 64 years (video, photos)

The liftoff of the last-ever Delta rocket today (April 9) brought with it a change in the way the U.S. sends satellites, interplanetary probes and spacecraft into Earth orbit.

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