Rocket Science

The Apollo-13 astronauts safely returned to Earth on April 17, 1970. Today commemorates the 41st anniversary of the dramatic conclusion to what must have been the most tedious and frightening events in space exploration history.

NASA launched Apollo-13 to be the third manned landing on the Moon. Two days into the mission, an oxygen tank on board the command module exploded, causing the end of the planned mission and initiated a dramatic space rescue effort, both back on Earth and on board the spacecraft.

The flight was commanded by James A. Lovell, with John L. “Jack” Swigert command module pilot, and Fred W. Haise lunar module pilot. The three astronauts and the Apollo-13 ground crew pieced together a rescue plan. Despite limited power, loss of cabin heat, shortage of potable water, and the critical need to jury-rig the carbon dioxide removal system, the crew returned safely to Earth on April 17, and the mission was termed a “successful failure”.

During the early 1990’s (I don’t remember the exact date), the Management Club at the company where I worked, invited Fred Haise to speak at one of our dinner meetings. He brought along a slide show and much anecdotal history of the Apollo-13 events. Haise recounted his time as an adviser to Bill Paxton, who played the role of Haise in the Apollo-13 film. Needless to say, the movie strayed from the business-like conduct of the astronauts in favor of dramatics, but the story line went more-or-less like the actual events, according to Haise.

After the presentation, I stepped to the podium (along with most everyone else there) and shook the hand of a real space hero.

Cubical rocks lie in a spot designated “Chocolate Hills” by the JPL team. These remind me of stones quarried to build ancient structures on our planet.

Excerpt from the Mars Rover website:

Opportunity at a sweet spot on Mars

This rock has a thick, dark-colored coating that is interesting to scientists because many of the rocks in the surrounding area have the same mysterious dark stuff. The coating could be remnants of a layer that was changed by the action of water and weather or, it could be a layer of rock that melted when a meteor (less than a foot across) impacted Mars, ejecting this rock and others and creating the crater “Concepcion”. Knowing its origins will help them understand the history of Mars. Opportunity’s mission is to figure out the “ingredients” of this morsel by studying the chemicals in it.

The article is silent about the shape of the rocks.