We will see a transit of Mercury across the disk of the Sun on Monday, November 11, 2019. You can watch the transit using SDO data at  https...

On May 9, 2016, Mercury passed directly between the Sun and Earth, making a transit of the Sun. Mercury transits happen about 13 times each...

I am glad so many people could watch the Mercury transit yesterday, with SDO and from the ground. People around the world were watching t...

Tomorrow at 1030 UTC (6:30 a.m. ET) we will begin watching Mercury move into view against the corona of the Sun. This is about 45 minutes be...

While watching the transit of Mercury across the Sun on May 9, 2016, at http://mercurytransit.gsfc.nasa.gov we will sometimes see that Merc...

Between 1120 and 1845 UTC (7:20 am and 2:45 pm ET) on May 9, 2016, SDO will watch a small black dot move across the Sun. The black dot won’t...