... on the same level and side of the Sun as they cross our host star. As such, Mercury transits only occur about 13 to 14 times per century. The last one was in 2016, but the next one ...
... a very small part of the Sun was blocked out. Mercury's transit across the Sun. Image Credit NASA/Paris Observatory “It’s a...exciting to see rare astronomical phenomena such as this transit of Mercury," added RAS President Martin Barstow. "They show ...