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Issue 2, August 2004
Flatbread, Ice Cream Sandwiches, and the Thrill of Discovery:
High School Students and the Mars Rovers
Selby Cull, Senior Research Editor
Planetary Sciences, Hampshire College
cull@jyi.org
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Adirondack,
a large rock at Gusev Crater, as seen by the Spirit Rover.
Image Courtesy of NASA and JPL. |
A
group of high school students has been lending NASA a hand with
its two newest Mars rovers. Since January 2004, dozens of students
from across the country have been jetting around Mission Control
in California, setting up databases, analyzing data, processing
information, naming rocks, and having the time of their lives.
The
students are part of the Athena Student Intern Program (ASIP), sponsored
by NASA and Cornell University, which has afforded 39 lucky high
school students the opportunity to virtually explore Mars. Through
ASIP, three high school students and one of their teachers are matched
with a member of the Athena Payload Science Team (which runs the
Mars Rovers). The students help the scientist process data, investigate
interesting photographs, handle the press, and do some of the basic
science needed to operate the rovers.
The
program is NASA’s latest — and possibly most exciting
— initiative to fuel the next generation’ interest in
space.
The
Student Teams
Teams were selected
in early 2003 from applicants across the country, and came from
high schools in Alabama, California, Colorado, Illinois, Nevada,
New Mexico, New York, North Carolina, Pennsylvania, and Texas. For
the mission, each team performed a unique and necessary task for
the Mars Rover science teams.
“One girl handled all the press for [Mars Rover Principle
Investigator] Steve Squires during the landings,” said Mary
Mulvanerton, the Athena Science Team Coordinator. “That was
a very big and very important job, since everyone from everywhere
was calling him up for an interview!”
The teams spent
time with their science mentors before the landing, preparing for
their work on Mars. The students learned about the geology of Mars,
the science and mechanics of the rovers, and the software they would
be using to analyze data. Finally, each team spent one week at Mission
Control in Pasadena during Rover Operations.
“It
was great to watch them during the mission operations,” said
Mulvanerton. “There were ear-to-ear grins on every kid —
and they just didn’t stop!”
The Laguna-Acoma Team
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Examining
Adirondack. The Laguna-Acoma team examines some thermal infrared
data on the Adirondack rock at Gusev Crater. Image courtesy
of NASA. |
Three
of those grins came to mission control from a small community in
New Mexico. The student science team from Laguna-Acoma High School,
in Laguna, N.M., consisted of three extremely enthusiastic students.
Brandon Herrera, a National Honor Society and Science Olympiad student;
Mark Vallejos, high school junior and volunteer community firefighter;
and Henry Vicente, the team’s student science journalist,
joined their teacher, Joe Aragon, on five months of Mars exploration.
Prior to the rovers’ landings on Mars, the Laguna-Acoma team
prepared for Mars by examining their own backyard. Accompanied by
their science mentor, Dr. Larry Crumpler, the team visited Mount
Taylor, near their homes in New Mexico, where they examined lava
flows and collected rock samples.
Back
at the lab, they identified the minerals in the rocks, and characterized
their weathering conditions. The team worked with Crumpler and Aragon
every week for five months prior to landing, learning how to examine
rocks.
“Dr.
Crumpler taught us all about lava flows,” said Herrera. “We
learned how to identify all the minerals, how the rocks were eroded,
and all sorts of structures in the rocks, like vesicles where tiny
pockets of gas exploded on eruption.”
After
several months of preparation, the team arrived at the Jet Propulsion
Laboratory (JPL) in California on January 18, in time for the Opportunity
rover’s landing — the third attempted rover landing
in two months. The European Space Agency’s Beagle 2 lander
had failed to land just a few months before; the Spirit Rover, already
on Mars, was not responding to NASA’s calls; and the mood
at JPL was tense.
“As
Opportunity came down through the [Martian] atmosphere, it felt
pretty exciting and stressful,” said Vallejos. “They
were doing a second-by-second update, and everyone was so quiet.
It was nerve-racking. We didn’t know if the rover would make
it...”
“When
it landed and the mission commander said everything was ok, everyone
went crazy!” continued Mark. “Pictures were flooding
in and the scientists were running to their computers! Everyone
celebrated! Looking at the pictures, we were stunned ... just knowing
that we were looking at another planet and we were among the first
people to see them.”
Mars
and New Mexico: Rocks and Names
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The
Laguna-Acoma Team. Left to right: Joe Aragon, Brandon Herrera,
Mark Vallejos, and Dr. Larry Crumpler. Not pictured: Henry
Vicente, team science journalist. Image courtesy of NASA.
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For one
week, the team lived by Mars time. Daytime at Gusev Crater, the Opportunity
rover’s landing site, was nighttime in Pasadena, and the Laguna-Acoma
team worked with the Mars rover scientists through the odd hours,
a feat made easier by plenty of ice cream sandwiches.
As images from Opportunity came in, Herrera, Vallejos,
and Vicente examined them with Crumpler and Aragon. They looked
for the minerals they had learned, such as olivine and pyroxene,
and tried to characterize the weathering.
“It was exciting!” said Herrera. “A
lot of the rocks on Mars look just like the basalt rocks that we
found. We looked at one rock and said ‘That’s olivine!’
and then the Mossbauer instrument measured it, and it really was
olivine!” (The Mossbauer spectrometer aboard the rovers measures
iron content in rocks and can distinguish different iron minerals.)
“Dr. Crumpler pulled us aside and said, ‘Hey,
you guys knew before the science team could figure it out,’”
said Vallejos. “That was pretty cool.”
The team also watched the Spirit rover use its rock
grinder on “Adirondack” — a tall pale rock at
the Gusev Crater landing site. The rover ground away several centimeters
of the rock’s surface to expose an unweathered interior. Looking
at the photos of a fresh Martian rock, the team again realized how
similar it looked to Earth rocks.
“They looked almost the same,” said
Vallejos. “But you have to remember that it’s hard to
compare them. Here, we have rocks in our hand. There, we only have
images and a robot’s arm. It’s a lot harder that way.”
Herrera and Vallejos were assigned a section of
the Spirit site, and spent hours counting and classifying all the
rocks in 61.6 cm of Martian soil. “That might not seem very
big,” said Herrera. “But these are little rocks and
pebbles! It took a long time!”
In addition to their 61.6 cm of Martian soil, the
team set up a database of rock names for the Spirit site. There
were many rocks, and the science team needed to be sure that no
name was duplicated.
“The scientists were going name-crazy,”
said Vicente. “There were over 100 rocks named in just the
week we were there. We had to ask every scientist whether they had
named a rock, and then record it.”
The Laguna-Acoma team named several rocks themselves.
On January 19, while working on their rock distributions, they named
a low, flat rock “Flatbread,” a reference to a New Mexican
delicacy. Later, the team named a bright white rock “Blanco,”
after the Spanish word for “white.”
In addition to these, the Laguna-Acoma team suggested
many names that the science team later used. “Laguna Hollow”
at the Spirit rover site is named for one of the pueblos near the
team’s high school, where Herrera lives. “Acoma Rock,”
also at the Spirit site, is named for the pueblo where Vicente lives.
“Thanks
to Dr. Crumpler and the science team, there are rocks on Mars named
after our communities,” said Vicente. “That is very
special for us.”
Further Reading
Athena
Student Intern Program: http://athena.cornell.edu/educators/asip.html
Mars Exploration Rovers Homepage: http://marsrovers.jpl.nasa.gov/home/index.html
Journal
of Young Investigators. 2004. Volume Eleven.
Copyright © 2004 by Selby Cull and JYI. All rights reserved.
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