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On this day – May 18

Posted on May 18, 2025May 9, 2025 By Barb Sande

The events on this day in history for our heritage companies are noted below.

The earliest event was in 1959, the latest was in 2021

Two milestone events (5 to 65+ years ago)

Human Spaceflight:

1969 – LAUNCH: Apollo 10, Saturn V, LC39B, KSC – Lunar orbit “dress rehearsal” of all systems; Gene Cernan, Tom Stafford, John Young

Military and Classified Programs:

1963 – LAUNCH: Lockheed Corona 64, Thor SLV-2A/Lockheed Agena D, SLC1E, VAFB

1965 – LAUNCH: Lockheed Corona 95, Thor SLV-2A/Lockheed Agena D, SLC1E, VAFB – MILESTONE: 60 years ago

2021 – LAUNCH: LM SBIRS GEO-5, ULA Atlas V 421, LC-41, CCSFS

Exploration and Interplanetary Programs:

NONE

Earth-Monitoring and Civil Weather Satellite programs:

1968 – LAUNCH FAILURE: RCA Nimbus B, Thor SLV-2G/Lockheed Agena D, SLC2E, VAFB

Commercial Programs:

NONE

Test, ICBM, FBM programs:

1959 – LAUNCH FAILURE: Lockheed Polaris AX, LC25A, CCAFS 

1960 – LAUNCH: Lockheed Polaris A1, LC25B, CCAFS – MILESTONE: 65 years ago

Other:

NONE

The photos today are from two missions.  First, there is the launch of Apollo 10 and its crew in 1969 (Commander Tom Stafford, CM Pilot John Young, LM Pilot Gene Cernan).  Photo Credits: NASA. 

Second, there is a photo of the launch of SBIRS GEO-5.  Here is the description and disclaimers of this photo that was released into the public domain on the USAF/USSF archives:

The U.S. Space Force successfully launched the fifth Space Based Infrared System Geosynchronous Earth Orbit satellite on an Atlas V launch vehicle from Space Launch Complex 41 at Cape Canaveral Space Force Station, Florida, May 18, at 1:37 p.m. (Courtesy Photo)

Non-Commercial Use Authorized. Except in cases where productions are authorized for DoD assistance, DoD VI [Visual Information] may be distributed, copied, and used, for non-commercial, personal use, as well as historical and newsworthy purposes or activities. Display of the non-DoD endorsement disclaimer is requested.

“The appearance of U.S. Department of Defense (DoD) visual information does not imply or constitute DoD endorsement.”

May 18 – Launch of Apollo 10. Photo Credit: NASA.
May 18 – Crew of Apollo 10 (Gene Cernan, Tom Stafford, John Young). Photo Credit: NASA.
May 18 – Launch of SBIRS GEO-5 on Atlas V. See notes for description and disclaimer.
On This Day

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