At 10:32 p.m. PDT on August 6th, the Mars Science Laboratory (MSL) spacecraft successfully placed a mini car-sized rover named Curiosity on the surface of Mars. It’s location is Gale Crater, a 154 kilometer (96 miles) wide, 3.5 billion year old hole in the ground, whose origin is not yet fully understood. In the center of the crater stands the five-and-a-half kilometer (18,000 feet) high mountain, Aeolis Mons (commonly referred to as “Mount Sharp”).
The trip to Mars spanned over 350 million miles, requiring an 8-month lonely voyage. Getting Curiosity to Mars was the easy part; landing the nearly one-ton rover was another game all together. Unlike its predecessors, Opportunity and Spirit, Curiosity could not use the ‘air-bag’ approach to landing because of its immense size. Instead, Curiosity employed a retro-rocket to slow its decent after entry and was lowered onto the ground via a “Sky-Crane” (See video below).
Over the next Martian year (686 Earth days), Curiosity – which is powered by the nuclear decay of plutonium – will do a multitude of experiments with various scientific tools, cameras, a weather station, a robotic arm with a power drill, a laser that can zap distant rocks, a chemistry lab to search for the chemical building blocks of life and a detector to measure dangerous radiation on the surface – just to name a few.
I can’t wait to see what new discoveries are around the corner. Something incredible is waiting to be known.
Finally, I leave you with a quote from the late Carl Sagan, recorded only months before his untimely death.
Maybe we’re on Mars because of the magnificent science that can be done there — the gates of the wonder world are opening in our time. Maybe we’re on Mars because we have to be, because there’s a deep nomadic impulse built into us by the evolutionary process — we come, after all, from hunter-gatherers, and for 99.9% of our tenure on Earth we’ve been wanderers. And the next place to wander to is Mars. But whatever the reason you’re on Mars is, I’m glad you’re there. And I wish I was with you.
Many Americans have a favorite sports team; teams for whom they cheer when they take on rivals. When a group of people congregate to root on their favorite football team, say in a local pub, the energy involved and the sense of camaraderie experienced can be spine-chilling. Even if the sports team loses, the sense of connection remains and is still indescribable; through ups and downs all leading up to the point to where your team has either succeed or they have not.
This is how I see the state of affairs when it comes to NASA and their quests into space. When Curiosity lands on Mars on August 5th, do you think every-day people are going to be out at a local pub eagerly watching the big screen TVs? Every time there is a mission such as this, it is the football equivalent of throwing a Hail-Mary pass blindfolded from the 1-yard line of your own end zone into heavy coverage with one second left in the game, down 7 points and still needing a 2-point conversion to pull out the win. Very difficult, but not impossible if you know what you’re doing, and it is stupefying that so few people know about it or care to watch it.
Missions like this are the ultimate nail-biter that every football nut loves and actively seeks. There is no “Team NASA”. In that I mean it seems as if there are very few hard-core fans of our own ability to do these difficult and wondrous things. I wish that pioneering events such as these were taken into the public eye much more and appreciated. Major network stations won’t air these events and so they go unnoticed.
I truly wish that I could walk into my local brew pub (packed to the brim) on the 5th with all the TVs airing the events as they happen. I would like to be able raise my glass to the success or failure of the mission with dozens of other like-minded fanatics, just as I would in supporting my Alma Mater.
On August 5th, 2012, a 2,000 pound rover by the name of Curiosity will land on Mars. This is NASA’s biggest and most expensive journey to Mars with little margin for error. Traveling over 13,000 miles per hour, Curiosity will slam into the Martian atmosphere to dissipate its velocity. A parachute will then deploy to slow its decent even more until the probe will physically lower the rover via cable and fire retro-rockets to gently place it on the surface. After it has successfully landed, the probe will shoot off to crash a safe distance away.
Sounds simple, right? Well, NASA’s team of scientists call this the “7 Minutes of Terror”. By the time they receive confirmation that Curiosity is about to enter the atmosphere, the rover itself will already be on the ground or have crash-landed. This is due to the amount of time radio signals take to travel from Mars to Earth (roughly 15 minutes one-way).
I am personally very excited for this tremendous event! At 7 feet tall, 9 feet wide and 10 feet long, the rover hosts an impressive array of gadgets that will help us to understand our neighboring planet, and hopefully confirm the presence of ancient life. That is, if all goes well….
For more information: http://phys.org/news/2012-07-mars-rover-human-approach.html