May 28, 2021: This evening Mercury passes brilliant Venus for the second of three conjunctions during this evening apparition of the second planet from the sun. Use a binocular about 45 minutes after sunset to see the speedy planet 0.4° to the lower left of Venus. This is the closest visible conjunction until 2033.
This episode is also available as a blog post: https://whenthecurveslineup.com/2021/05/17/2021-may-28-close-venus-mercury-conjunction/