Follow this link to skip to the main content
National Aeronautica and Space Administration
+ NASA Homepage
+ NASA en Español
+ Marte en Español
Go Search
NASA's Mars Exploration Program
Overview Science Technology Missions People Features Events Multimedia All About Mars
Mars for Kids
Mars for Students
Mars for Educators
Mars for Press
+ Mars Home
Features
List of All Features
The RAT With the Right Stuff

Like any aspiring astronaut, the RAT must prove it has the right stuff before it can launch. The Rock Abrasion Tool is the brainchild of Mars Exploration Rover Principal Investigator , Steve Squyres of Cornell University, Ithaca, NY. Gorevan of Honeybee says, "Squyres thought of the need to expose a rock on Mars, and got us from point A to point B. Our job has been to get from point B to point Z."

After winning the competitive instrument contract, the Honeybee team has had to follow strict size, mass, and pressure requirements generally dictated by the strength limitations set by the robotic arm. The Honeybee team had to use its ingenuity to come up with the optimum way to provide a mini crater in a martian rock. Gorevan says, "We cobbled and cogitated together to test ideas, and we're at about point W on the way to Z."

The RATs in NYC Now Have Motors

Steve Kondos Rick Paynter
Steve Kondos Rick Paynter
Last week, Steve Kondos and Rick Paynter from JPL hand-delivered to Honeybee the motors that run the RATS. "We're really conservative at JPL. The value of the instrument far exceeds the cost," says Paynter. "We split the motors and carried them in different pieces of luggage and took separate planes to New York City."

Now that JPL delivered the motors, "we have a clear path to finish our environmental tests and 'shake and bake' the RAT." "Shake and bake" is a process used by engineers to ensure that instruments can withstand the intense vibrations and heat of launch, the extraordinary impact of landing on Mars, and the strong radiation exposure during interplanetary cruise. As time races toward launch, other challenges still remain. "One surprise has been to find how much dust is created by the RAT," explains Gorevan at Honeybee. As the robot grinds away at a rock, it generates dust plumes and leaves RAT "droppings" that can blow onto the solar arrays of the rovers or the cameras.

"Honeybee's claim to fame in NYC is a long way from its new role with Mars - they created the giant moving parts on the Coca-Cola sign in Time Square," says Rick Paynter from JPL. Steve Kondos from JPL calls the RAT people at Honeybee ingenious. "They are concerned with cost and schedule milestones, and best of all, they are fun to be with. Since we come from LA, the Honeybee team introduces us to little known spots, like a deli where the bread is so good that Frank Sinatra used to have loaves shipped from Manhattan to Hollywood every week."

New York, 9/11, and Mars

"After September 11 happened, the first thought was how the team at Honeybee was affected", explains Kondos. "We called immediately, but of course couldn't get in contact with them." Luckily, no one on the team was hurt.

NASA Headquarters just approved putting an American flag on the rock shield of the Rock Abrasion Tool. "It's not the equivalent of placing the American flag in the rubble pile, but it's something like that." Kondos is quiet for a moment, then adds, "We're not stopping our progress and hiding, we're rising to the stars."

<< Sending RATs to Mars  

Full Text
Sending RATs to Mars
    The RAT With the Right Stuff

Credits Feedback Related Links Sitemap
FirstGov
NASA Logo