Researchers have discovered a thick atmosphere enveloping a planet called 55 Cancri e, which is twice the size of Earth and located in a nearby solar system.
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Artemis II astronauts Reid Wiseman, Jeremy Hansen, Victor Glover and Christina Koch recall their out-of-this-world moon mission....
Artemis, a German shepherd, became the last animal sheltered to find a forever home after more than 440 days....
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