Mercury: Crash Course Astronomy #13
Mercury is the closest planet to the sun. It has no atmosphere and is, as such, covered in craters. It's also incredibly hot but, surprisingly, has water ice hiding beneath its surface. --...
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Mercury is the closest planet to the Sun. As you might expect, that makes it pretty hot. But also, it’s pretty cool. There are seven naked-eye solar system objects in the sky: Mercury, Venus, Mars, Jupiter, Saturn, the Sun, and the Moon. Seven. Each of them was associated with a god in ancient times. Mercury was the Roman messenger of the gods, fleet of foot—literally, he had wings on his shoes—and a rapid traveler. To anyone who’s seen Mercury in the sky, this affiliation with the swift god is no surprise. Mercury the planet moves pretty quickly, visibly changing its position relative to the background stars even after a single night. Despite its speed, the planet never gets very far from the Sun. At best, it can reach a separation of about 28°. T...
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Mercury is the closest planet to the Sun. As you might expect, that makes it pretty hot. But also, it’s pretty cool. There are seven naked-eye solar system objects in the sky: Mercury, Venus, Mars, Jupiter, Saturn, the Sun, and the Moon. Seven. Each of them was associated with a god in ancient times. Mercury was the Roman messenger of the gods, fleet of foot—literally, he had wings on his shoes—and a rapid traveler. To anyone who’s seen Mercury in the sky, this affiliation with the swift god is no surprise. Mercury the planet moves pretty quickly, visibly changing its position relative to the background stars even after a single night. Despite its speed, the planet never gets very far from the Sun. At best, it can reach a separation of about 28°. T...
