A Teachable Moment in the Sky: The Transit of Mercury

Published: 8/11/2019
A Teachable Moment in the Sky: The Transit of Mercury
Source: JPL.NASA.GOV

It only happens about 13 times a century and won’t happen again until 2032, so don’t miss the transit of Mercury on Monday, Nov. 11! A transit happens when a planet crosses in front of a star. From our perspective on Earth, we only ever see two planets transit the Sun: Mercury and Venus. This is because these are the only planets between us and the Sun. (Transits of Venus are especially rare. The

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