Skip to content

For Retirees of LM, ULA, and Legacy Companies

  • Home
  • About
    • MARS Officers & Directors
    • Policy Documents
    • MARS Overview
  • Benefits
    • Dental Plans
    • Vision Plans
    • Hearing Aid Discounts
    • Pre-Medicare
    • Understanding Medicare
    • VIA Benefits
    • ULA Benefits Contacts
    • Local Discounts
    • LM Corporate Discounts
    • Tax Adjustments
    • Informational Sessions Presentations
    • What to do when your loved one dies
  • Events
    • Calendar
    • Full Year Calendar
    • Special Activities
      • Special Event Planning Steps
      • Submit a Special Event
    • Event Photos
  • Membership
    • Membership Renewal
    • New Member Application
    • Member Contact
    • Volunteer
    • MARS Logo Store
  • Clubs
    • Bridge Club
    • MARS Car Club
    • Golf Club
    • Hiking Club
    • PACESETTERS Club
    • Photography Club
    • LM Clubs & Leagues
  • Communications
    • MARS STAR
      • Archive
    • In Memoriam
    • Website Team
  • History
    • On This Day
    • MARS Moments
    • Brief History of LM Denver
    • Martin Marietta Archives
  • Toggle search form

On this day – October 23

Posted on This article was published on October 23, 2025October 8, 2025 By Barb Sande

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

The earliest event was in 1958, the latest event was in 2019

Two milestone events (5 to 65+ years ago)

Human Spaceflight:

1989 – LANDING: STS-34 (Atlantis), Edwards AFB

2007 – LAUNCH: STS-120 (Discovery), LC39A, KSC – 7 person crew, ISS Harmony module.  Crew: Pamela Melroy, George Zamka, Douglas Wheelock, Stephanie Wilson, Scott Parazynski, Paolo Nespoli (ESA – Italy).  To ISS Expedition 16  – Daniel Tani; From ISS Expedition 16 – Clayton Anderson. 

,

Military and Classified Programs:

1961 – LAUNCH FAILURE: Lockheed Discoverer 33, Thor/Lockheed Agena B, SLC1W, VAFB 

1964 – LAUNCH: Classified mission, GD Atlas/Lockheed Agena D, SLC4W, VAFB 

1968 – LAUNCH: RCA DMSP-Block-4A F12, Thor Burner 2, SLC10W, VAFB

1970 – LAUNCH: Classified mission, MM Titan 23B, SLC4W, VAFB – MILESTONE: 55 years ago

1971 – LAUNCH: Classified mission, MM Titan 24B, SLC4W, VAFB

1974 – Contract for GPS ground stations awarded to GD

2019 – LM receives a contract worth $108 million for technology maturation and risk reduction of Mark 21A reentry vehicle

Exploration and Interplanetary Programs:

NONE

Earth-Monitoring and Civil Weather Satellite programs:

NONE

Commercial Programs:

NONE

Test, ICBM, FBM programs:

1957 – LAUNCH: Martin Vanguard TV-2, LC18A, CCAFS – Suborbital test of systems

1958 – First Martin Titan I flight missile delivered (A-3) to the USAF

1961 – LAUNCH: Lockheed Polaris A2, SSBN608, ETR

1970 – LAUNCH: Lockheed Poseidon C3, SSBN627, ETR – MILESTONE: 55 years ago

1979 – LAUNCH: Lockheed Poseidon C3, SSBN628, ETR 

1994 – LAUNCH: Lockheed Trident C-4, SSBN726, ETR

2012 – LAUNCH: LM Trident D-5, UK S30, ETR

Other:

NONE

The photos today are from the STS-120 mission and include the launch, the crew, OV Discovery approaching ISS, and work being done to repair tears in one of the solar arrays on ISS. Photo Credits: NASA. 

October 23 – Launch of STS-120. Photo Credit: NASA.
October 23 – Crew of STS-120 (see text for crew names). Photo Credit: NASA.
October 23 – STS-120 (Discovery) approaches ISS. Photo Credit: NASA.
October 23 – Crew member of STS-120 repairs damaged solar arrays on ISS. Photo Credit: NASA.
On This Day

Post navigation

Previous Post: Q4 2025 MARS STAR Now Available

Related Posts

  • On this day – December 28 On This Day
  • On this day – April 15 On This Day
  • On this day – March 11 On This Day
  • On this day – September 22 On This Day
  • On this day – December 10 On This Day
  • On this day – June 30 On This Day

More Related Articles

On this day – September 1 On This Day
On this day – August 18 On This Day
On this day – December 10 On This Day
On this day – December 2 On This Day
On this day – July 23 On This Day
On this day – December 6 On This Day

About us

MARS Associates
PO Box 1128
Littleton, CO 80160-1128

Suggestion Box

Find us on Facebook

Copyright © 2025 MARS Associates