Today was a historic day for American spaceflight. After more than forty years America finally has a launch vehicle to take humans beyond low-Earth orbit. It’s not as if we’ve wasted our time hanging out in LEO since 1972, we’ve learned some truly amazing things about space as an environment since then. After the Apollo program ended we built Skylab where humans had their first extended stays in space and began the study of the effect of micro gravity on the human body, animals, and plants. Skylab led to Mir, the Russian space station, we sent up the venerable Hubble Space Telescope, performed many incredible experiments with the space shuttle, built the International Space Station and much more up until now. Now we have turned the page on all that we’ve accomplished since Gene Cernan climbed back into the LEM a final time in 1972. We’re not leaving all those accomplishments behind, we’re simply moving forward, and upward.
Today was the first test flight of the Orion Crew Module (OCM) on board a Delta IV Heavy Rocket. The whole unit together comprises the Space Launch System (SLS). Today’s test flight was unmanned so instead of astronauts the OCM was packed with sensors to monitor the performance of the capsule’s performance during every second of the 4 hour flight. The SLS looks very similar to the Apollo-era Saturn V rockets. While not quite as tall it is certainly more powerful than the rockets that carried Neil Armstrong to the moon in 1969. SLS features three separate booster engines compared to the Saturn V’s three engines in one block. The goal is more usable fuel to go deeper into space.
No human has left low-Earth orbit in over forty years but today’s test flight took us one step closer to that achievement. The OCM was blasted 3,600 miles above Earth’s surface. For reference the Hubble telescope which was at the upper limit of the space shuttle’s range orbits at 347 miles. At an altitude of 3,600 miles you could see most of the Earth out the window. The photo below was taken from the OCM and is probably very familiar if you’re old enough to remember the days of the Apollo missions when we first left the Earth behind. Now four decades removed from those heady days an entire generation has grown up without seeing these kind of images shown on the news. It’s my hope that as the SLS-Orion program moves forward the American public will rediscover a love for space exploration that its parents and grandparents had which made our country great.
The seeds of success have been sown by hard work, determination, and talent from all the people who have thus far worked on the SLS-Orion program. Jim Lovell, commander of Apollo 13 wrote in his book Lost Moon, “I look up at the moon and wonder when we’ll be going back and who that will be?” We’ve yet to answer that question but right now we can at least say, “Soon.”