Voyages of Endeavour: 25 Years Since NASA's Youngest Space Shuttle Took Flight (Part 1)

Endeavour makes landfall under her own power for the final time on 1 June 2011, closing out a remarkable chapter in human space exploration. Photo Credit: NASA

From the moment she left Pad 39B at the Kennedy Space Center (KSC) in Florida, on the evening of 7 May 1992, to the instant her […]

Firing Up the Shuttle: 25 Years Since the Last Flight Readiness Firing (Part 2)

Each Flight Readiness Firing (FRF) presented the opportunity to extensively test the Space Shuttle Main Engines (SSMEs) in as close to real-flight operations. Photo Credit: NASA

A quarter-century ago, on 6 April 1992, the roar of three Space Shuttle Main Engines (SSMEs) echoed across the marshy landscape of the Kennedy Space Center (KSC) […]

Firing Up the Shuttle: 25 Years Since the Last Flight Readiness Firing (Part 1)

Before each orbiter’s maiden voyage, the Space Shuttle Program completed a Flight Readiness Firing (FRF) of the three main engines. The last FRF, by Endeavour, occurred 25 years ago, this week. Photo Credit: NASA

“T-minus 31 seconds…Endeavour’s four redundant computers have primary control of critical vehicle functions for the remainder of the count…”

[…]

'Our Own Little Spaceship': 15 Years Since the Flag-Bearing Mission of STS-108 (Part 2)

On STS-108, Linda Godwin became the only woman to have spacewalked outside both Mir and the International Space Station (ISS). Photo Credit: NASA, via Joachim Becker/SpaceFacts.de

At the cusp of nightfall on 5 December 2001, Space Shuttle Endeavour dispelled some of the darkness which had cloaked the world for several months. Less than […]

'Let Freedom Roar': 15 Years Since the Flag-Bearing Mission of STS-108 (Part 1)

As evidenced by these three hats on-console in the Mission Control Center (MCC) at the Johnson Space Center (JSC) in Houston, Texas, STS-108 truly let freedom roar on 5 December 2001. Photo Credit: NASA

Fifteen years ago, this week—as America and the world reeled from the 9/11 terrorist atrocities—Space Shuttle Endeavour launched on […]

'A Peaceful, If Temporary Home': 45 Years Since the Mission of Apollo 15 (Part 4)

Jim Irwin works on digging a trench to test the bearing capacity of the lunar soil. He “solved a dog’s job with a dog’s technique.” Photo Credit: NASA

Forty-five years ago, today, on 7 August 1971, the Apollo 15 crew—Commander Dave Scott, Lunar Module Pilot (LMP) Jim Irwin, and Command Module Pilot (CMP) […]

'Lifted Up On A Pedestal': 45 Years Since the Mission of Apollo 15 (Part 3)

Haunting view of Jim Irwin with the lunar rover, backdropped by the grandeur of Mount Hadley. Photo Credit: NASA

Forty-five years ago, this week, as July burned into August 1971, three sons of Planet Earth were midway through their exploration of the Moon. Aboard the Command and Service Module (CSM) Endeavour, astronaut Al […]

'Exploration at Its Greatest': 45 Years Since the Mission of Apollo 15 (Part 2)

Dave Scott works with the Lunar Roving Vehicle (LRV) on the slopes of Hadley Rille during Apollo 15. Photo Credit: NASA

Since the evening of 20/21 July 1969, it had become something of a tradition for the commander of each Apollo lunar landing mission to make a comment as he took his first […]

'The Reality of the Situation': 45 Years Since the Mission of Apollo 15 (Part 1)

For each Apollo landing crew, the cramped confines of the Lunar Module (LM) provided their sanctuary against the hostile extremes of an airless, lifeless world beyond. Photo Credit: NASA

Four hundred miles (640 km) to the north of the Moon’s equator lies a place called Hadley: a small patch of Mare Imbrium at […]

'An Amazing and Wonderful Experience': 20 Years Since STS-77’s Record-Setting Rendezvous Mission (Part 2)

STS-77’s primary cargoes dominate this view of Endeavour’s payload bay in orbit. In the foreground is the Spacehab-4 module, with SPARTAN-207 visible in the background. Photo Credit: NASA, via Joachim Becker/SpaceFacts.de

Twenty years ago this week, six men orbited Earth aboard Shuttle Endeavour on one of the most complex research flights ever conducted […]