Space probe Osiris-Rex by NASA was launched to collect rock samples from the Bennu asteroid.
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Europe's Planck spacecraft found evidence that our universe is 13.8 billion years old.
Robert H. Lawrence, Jr. was selected as the first African-American astronaut.
Sputnik 1 became Earth's first artificial satellite to go into orbit.
The world's first person visited space.
Two new moons of Saturn were found in photos from the Hubble Space Telescope by Astronomers Amanda S. Bosh and Andrew S. Rivkin.
