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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
Feeling blue might make a sad person see blue differently
NASA is using 3-D printers to create rocket parts
A portable garden aboard the International Space Station can help the astronauts' physical and mental health
The Perseids meteor shower will light up the night sky
Scientists discover the remains of America’s first English settlers
Scientists at NASA have discovered Earth’s bigger, older cousin
TFK chats with astronaut Kjell Lindgren about his mission to the ISS
NASA’s New Horizons spacecraft is approaching the dwarf planet
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