— -- Big Bear Solar Observatory in southern California has released stunning footage of what it says are “highest-ever spatial resolution images of Mercury crossing the Sun.”
The observatory says the once-in-a-decade event, which occurred on May 9, was captured for the first time by its 1.6-meter diameter New Solar Telescope, which is the highest-resolution solar telescope in the world.
The Big Bear Solar Observatory released footage of what it says are the "highest-ever spatial resolution images of Mercury crossing the Sun."
NASA
The last time Mercury crossed the sun was in 2006 before the NST was built, according to the observatory.
