Anniversary - 1st Planetarium Opens in the US (1930)
Anniversary - 1st Planetarium Opens in the US  (1930)
Tue, May 12, 2026

Happy birthday, Adler Planetarium!  Learn more about the history of planetariums with this 8 minute video by the American Museum of Natural History.

Annual / Historic:Historic Anniversary
Anniversary - STS-132 (Space Shuttle Atlantis) Launch (2010)
Anniversary - STS-132 (Space Shuttle Atlantis) Launch (2010)
Thu, May 14, 2026

Commander Ken Ham, Mission Specialists Garrett Reisman, Michael Good, Piers Sellers and Steve Bowen, Pilot Tony Antonelli.

More info here.

Event Type:Annual /Historic
Annual / Historic:Historic Anniversary
Mission Event Type:Launch
Anniversary - Nancy Grace Roman's Birth (1925)
Anniversary - Nancy Grace Roman's Birth (1925)
Sat, May 16, 2026

Dr. Nancy Grace Roman, often called the "Mother of Hubble," is shown with a model of the Orbiting Solar Observatory (OSO) in 1962. She was the first Chief of Astronomy in the Office of Space Science at NASA Headquarters and the first woman to hold an executive position at NASA. In her role, she had oversight for the planning and development of programs including the Cosmic Background Explorer and the Hubble Space Telescope.  The Roman Space Telescope, named in her honor,will have a field of view at least 100 times larger than Hubble's, potentially measuring light from a billion galaxies in its lifetime. This observatory will also be able to block starlight to directly see exoplanets and planet-forming disks, complete a statistical census of planetary systems in our galaxy, and settle essential questions in the areas of dark energy, exoplanets, and infrared astrophysics.

Event Type:Annual /Historic
Annual / Historic:Historic Anniversary
15th Anniversary (2011) - STS-134 Launch
15th Anniversary (2011) - STS-134 Launch
Sat, May 16, 2026 | 5:56am PDT
Event Type:Annual /Historic
Annual / Historic:Historic Anniversary
Anniversary - Discovery of Jupiter's Belts (1630)
Anniversary - Discovery of Jupiter's Belts  (1630)
Sun, May 17, 2026

Jupiter is the fifth planet from our Sun and is, by far, the largest planet in the solar system – more than twice as massive as all the other planets combined. Jupiter's stripes and swirls are actually cold, windy clouds of ammonia and water, floating in an atmosphere of hydrogen and helium. Jupiter’s iconic Great Red Spot is a giant storm bigger than Earth that has raged for hundreds of years.

Event Type:Annual /Historic
Annual / Historic:Historic Anniversary
Anniversary - Mt. St Helens Eruption (1980)
Anniversary - Mt. St Helens Eruption (1980)
Mon, May 18, 2026

Mount St. Helens has provided unprecedented opportunities for U.S. researchers to collect scientific observations of the geology of an active volcano and document the regional ecological impact and recovery from an eruption.

Earth Observatory's World of Change: Devastation and Recovery at Mt. St. Helens story heretopographic change here and 2002 image here

Event Type:Annual /Historic
Annual / Historic:Historic Anniversary
Anniversary - STS-101 (Space Shuttle Atlantis) Launch (2000)
Anniversary -  STS-101 (Space Shuttle Atlantis) Launch (2000)
Tue, May 19, 2026

Commander James D. Halsell Jr., Pilot Scott J. "Doc" Horowitz, Mission Specialists Mary Ellen Weber, Jeffrey N. Williams, James S. Voss, Susan J. Helms and Yury Vladimirovich Usachev.

More info here.

Event Type:Annual /Historic
Annual / Historic:Historic Anniversary
Mission Event Type:Launch