Curiosity recorded alien rainbow-colored clouds sweeping over Mars
Curiosity, a set of NASA 's robotic "eyes" on the Red Planet, recorded 16 minutes of so-called noctilucent clouds flying ...
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The Milky Way's shiniest known planet has metal clouds that rain down titanium. Astronomers say it 'shouldn't exist.'
Venus, the solar system's shiniest planet, reflects 75% of the sunlight. Scientists believe the planet's mirror-like quality is due to the composition of its atmosphere. The metallic clouds that ...