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[Unlocking the Secrets of the Solar System: The Mission of NASA’s Lucy Satellite]-[Lucy The Space Archaeologist]

Wow in the World · B1 · 2022-02-28

Preschool Enlightenment
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📋 Summary

The Cosmic Archaeologist: NASA’s Lucy Mission

In this episode of Wow in the World, hosts Mindy Thomas and Guy Raz embark on a journey to explore one of NASA's most fascinating scientific endeavors: the Lucy mission. Just as archaeologists dig through the earth to uncover the history of human civilization, the Lucy satellite is designed to act as a "cosmic archaeologist," traveling deep into space to decode how our solar system formed billions of years ago.

The Destination: Trojan Asteroids

Mindy explains that the Lucy satellite is heading toward the "Trojans," two massive clusters of asteroids that share an orbit with Jupiter. An orbit, as clarified in the show, is "the path that an object makes around another object in space." These Trojan asteroids reside roughly 500 million miles from the sun, trailing both in front of and behind Jupiter.

Scientists hold a compelling hypothesis that these asteroids are the "cookie crumbs" of the solar system—remnants of a planet that failed to form long ago. By studying these "failed planet" fragments, NASA hopes to gain insight into the building blocks that constructed the successful planets we see today.

The Itinerary and Scientific Methodology

Lucy’s journey is a multi-year expedition. The satellite is scheduled to visit several asteroids, including Eurybates, Polymele, Leucus, and Orus. Mindy describes this as a "whirlwind trip" that spans from 2027 through 2028. To conduct its research, the satellite utilizes advanced technology:

  • Imaging: Lucy takes high-resolution pictures to count craters. As Mindy notes, "the older asteroids will have more craters because they've had more time to get banged up," serving as a historical record of the asteroid's age.
  • Advanced Sensors: The satellite is equipped with thermal and multispectral cameras to analyze the surface composition of the asteroids without needing to land on them. This "breezy little flyby" allows Lucy to gather massive amounts of data while maintaining its trajectory.

Why the Name 'Lucy'?

The choice of the name "Lucy" is significant. It honors the famous archaeological discovery of the early human ancestor fossils. By naming the satellite after such a foundational discovery, NASA highlights the mission's core purpose: to dig into the past to understand our origins. The satellite itself is relatively small, described as being roughly the size of a "school bus" (about 46 feet across), contrasting sharply with the massive asteroids it studies, some of which are nearly 100 miles in diameter.

Conclusion

The episode concludes with a playful reminder of the curiosity that drives scientific discovery. Whether it is through Mindy’s humorous, albeit messy, attempts at 3D-printing "asteroid cookies" or the actual, high-stakes engineering behind the Lucy mission, the spirit of inquiry remains the same. By investigating these ancient space rocks, humanity continues to piece together the "how and wow" of our celestial neighborhood, proving that there is always more to learn about the universe we call home.

🎯Key Sentences

1
It's going to be a November to remember.
2
But for now, let's get on with the show.
3
Just in time.
4
What were you two doing in there?
5
Think fast.
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📝Key Phrases

1
music to your ears
2
get on with the show
3
just in time
4
suit yourself
5
all but certainly
Expand All

📖 Transcript

Grownups, Wondery Plus subscribers can listen to Wow in the World early and ad-free right now.
Join Wondery Plus in the Wondery app or Wondery Kids Plus on Apple Podcasts.
Hey, Wowzer fans, Mindy here.
And before we start the show, I gotta let you know that this November, with a special new episode featuring our friends at Circle Round and Terrestrials on Radiolab for Kids,
And don't miss when Elmo from Sesame Street stops by Wow in the World to make us all belly laugh on November 24th.
Oh, but that's not all, Reg.

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