

A pair of mini satellites has boldly ventured where few spacecrafts have gone before. But the duo weren’t alone. The interstellar tag-alongs accompanied a NASA lander to Mars. The Mars Cube One (MarCO) mission was a test of whether these experimental spacecrafts could survive the seven-month trip to Mars and broadcast nearly real-time news of the big lander’s touchdown.
CubeSats are small and fairly low-cost. They always rideshare on larger rockets. MarCO-A and MarCO-B—nicknamed “EVE” and “WALL-E” after the leads in the 2008 Pixar film—hitched a ride on the same rocket that launched NASA’s robotic lander InSight in May.
The CubeSats—cube-shaped satellites— performed as planned according to chief engineer Andy Klesh of NASA’s Jet Propulsion Laboratory (JPL). They relayed data with just an eight-minute delay—about the time it takes for signals to travel from Mars to Earth. Klesh says the briefcase-sized satellites “were an excellent test of how CubeSats can serve as ‘tag-alongs’ on future missions.” The MarCO team will spend weeks collecting information from the CubeSats—how much fuel each has left and how well data relay worked.
Here are some facts about the trip:
ELBOW ROOM
NASA kept the CubeSats about 6,000 miles away (over twice the width of the United States!) from InSight during the 300-million-mile journey to Mars. They wanted to prevent any collisions—or even close calls. The mini satellites were just as far from each other for the same reason.
BEST BEHAVIOR
Each CubeSat uses the same kind of gas propulsion that’s used in fire extinguishers to spray foam. During the voyage, EVE behaved better than WALL-E, who leaked fuel almost the whole time.
PHOTO FIRST
WALL-E and EVE sent back images of Mars from eight million miles out. Mars was only a bright pinpoint, but the images marked a CubeSat first.
GALACTIC GOALS
As NASA explores more of God’s universe, CubeSats could be outposts to beam updates back to Earth. They could perform fact-finding missions where there are no satellites—like asteroids or dwarf planets on the edges of the solar system.
TO MARS . . . AND BEYOND!
Their mission complete, WALL-E and EVE zoomed past Mars. They’ll remain in an elliptical orbit around the Sun for as long as their fuel and electronics last.
As WALL-E and EVE flew away, InSight began measuring Mars’ temperature, landscape, and other features. The lander will relay much more data to NASA. But on the first leg of this interplanetary trip, CubeSats were the stars!
When I look at your heavens, the work of your fingers, the Moon and the stars, . . . what is man that you are mindful of him? — Psalm 8:3-4
That is so cool! I went to
That is so cool! I went to see Wall-e, I was really young then : )
2nd Comment
xD
teeny little satlilites
it's amazing that a satellite the size of a briefcase had enough fuel to fly to mars.
4TH comment
wow that is so cool. 6,000 miles away, that's a lot of elbow room.
COOL
the movie WALL-E Is so cute thats interesting that they would name satellites after them.....
i think, Ben, That since
i think, Ben, That since there isn't any air in space, there is less resistance to the satellite so it can go farther on less fuel
Amazing!!!
If you think about it, it is amazing that we have come this far with technology. I mean, sending stuff to Mars... That's awesome!!! And it's cute that they nicknamed the satellites Wall-e and Eve. I love that movie!
wow
that is pretty cool that they could make them not crash into each other. i remember i watched wall-e when i was like 4 or 5. the only reason i remember this was b/c it was the first time i had neapolitan ice-cream the only time i was allowed to eat stuff while watching a movie in the living room.
Awesome!
Awesome! I really hope that by 2030 we will have set foot on Mars. How cool would it be to learn more about the universe and what it holds?
10th Comment
Wow 10 Comments