The planet Mercury can be seen as a tiny speck, just above and to the left of center, as it makes its transit across the Sun on Monday, May 9, 2016.
Be sure to protect your eyes by using a telescope or binoculars featuring proper solar filters.
Richard Sanderson, curator of physical science at the Springfield Science Museum, hosted the event on the Quadrangle grounds. It appeared as a black dot during its 7.5 hour trip for stargazers with the help of of a telescope and solar filters.
This time the sojourn of Mercury between our blue planet and our star lasts from 1112 GMT until 1842 GMT. It will happen again in three years.
If you aren't able to see the transit in person, you can check it out online thanks to a few different webcasts from NASA, Slooh and Sky & Telescope magazine embedded below.
The last time the planet could be seen - from Earth - crossing the face of the Sun was in November 2006.
The planet Mercury is passing directly across the face of the Sun for the first time in 10 years, as it casts a shadow across South America, Africa, Western Europe and the east of North America.
The planet Mercury will pass in the front of the sun today.
The next eclipse will take place in 2019, and after that, you'll have to wait until 2032.
Nonetheless, astronomers are giving the public the opportunity to view the rare celestial event from the comfort of their own home through various streams, which you can watch live here.
No matter how you look at it, Mercury's jaunt across the sun is something worth checking out on Monday.
"Astronomers get excited when any two things come close to each other in the heavens", said Louis Mayo, program manager at NASA's Goddard Space Flight Center in Greenbelt, Maryland. After that, you won't have another chance to see it until 2049.