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NASA and families of fallen astronauts mark 40th anniversary of space shuttle Challenger accident
Families of the astronauts lost in the space shuttle Challenger accident are marking that tragic day 40 years ago ...
The Trump administration is ending the use of abortion-derived fetal tissue in research funded by the National Institutes of ...
The U.S. has finalized its withdrawal from the World Health Organization. Federal officials announced the completion Thursday. The decision follows President Donald Trump's announcement a year ago.
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