The 10 Coolest Things About The Mars Rover “Curiosity”
By on November 23rd, 2011

The new Mars Rover, Curiosity, is the most high-tech way to explore Mars. The most technologically sophisticated spacecraft ever designed to land on an alien world is due to launch on Saturday, 26th November. We take a closer look at the Wall-E-like spacecraft and pick out the 10 coolest things about the rover.

The Curiosity Rover still at the JPL. Photo taken last year. Photo Courtesy: JPL/NASA

1. Magnifying Glass? All the better to see you with, dear

The Curiosity Rover will carry a high-power magnifying lens, only more sophisticated and maneuverable than the ordinary ones. It’s called Mars Hand Lens Imager or MAHLI. It will be loaded at the end of the Robotic Arm of the rover (see below) and be able to see objects as tiny as 12.5 micrometers (a hair’s width) in size! It’s like having a portable microscope to look at rock samples with the facility of being able to point it anywhere.

2. Plutonium Juice!

The rover will run on Plutonium power. The plutonium used will be the non-weapons grade and will be used for heating a rod of Lead Telluride. Lead Telluride is a thermoelectric material and generates electricity if there is a temperature gradient. The plutonium battery’ doesn’t depend on the external condition, like temperature, so even if the outside is a frigid -840C, it doesn’t matter. You need not worry about the battery freezing or draining out too fast. The juice will last for 23 months, which is longer than the period of the mission. The 10 pound battery is located at the rear end of the rover and will produce 110W of power. We’ve managed to put nuclear power on the Red Planet; surely, that’s an achievement.

Graphic showing the different parts of the Mars Rover. (Courtesy: JPL/NASA and Space.com)

3. Robotic Arm

This is one of the coolest things about the Mars Rover. The rover is fitted with a 7-foot robotic arm, which is quite maneuverable. On the end of the robotic arm sits MAHLI. It also includes the Alpha Particle X-Ray Spectrometer (APXS).

4. Analysis on Mars The Sample Analyser at Mars (SAM)

For scientists, just looking at a material means nothing they need to know what it is made up of. The Sample Analyser at Mars (SAM) is just the tool to do the job. It’s also the Hulk of all the modules there, weighing at a hefty 38 kg, about half the weight of all the instruments onboard Curiosity. SAM will look at the rocks in three different ways, thanks to the three instruments that it carries a mass spectrometer, a laser spectrometer and a gas chromatograph. It will thus give all relevant data, like density and chemical composition. SAM will also drill for rock samples from deep inside the Martian surface and this has got everyone excited!

5. Capturing some scenes with the MastCam

Curiosity is expected to send us some pictures of the Martian surface to drool over and the MastCam is the instrument for the job. The name suggests that a camera is mounted on an adjustable mast and, no surprise, that is exactly what it is. The MastCam is also responsible for being the eyes of the rover, allowing Earth-based controllers drive the machine on the alien surface.

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Author: Debjyoti Bardhan Google Profile for Debjyoti Bardhan
Is a science geek, currently pursuing some sort of a degree (called a PhD) in Physics at TIFR, Mumbai. An enthusiastic but useless amateur photographer, his most favourite activity is simply lazing around. He is interested in all things interesting and scientific.

Debjyoti Bardhan has written and can be contacted at debjyoti@techie-buzz.com.

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