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Astronauts Scott Kelly and Kjell Lindgren speak to students . . . from space!
Greenhouse gas levels hit a record high
A new study reveals some surprises about kids and technology
Astronauts on the ISS performed their first spacewalk
TFK reports from White House Astronomy Night
NASA astronaut is paving the way for even longer missions
TFK Kid Reporter Evelyn Burns celebrates National Fossil Day
Engineers from Israel have taken the lead in a moon-mission contest
Charlotte's dad, astronaut Scott Kelly, is on a yearlong mission in space.
NASA scientists have discovered evidence of liquid water flowing on the Red Planet
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