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A Letter from a Third Grader, Part 2: My Response

Science is a joyful endeavor. Not always, and maybe not even most of the time, but let’s face it: at heart, scientists are still little kids, endlessly curious about the world and always exploring, always asking why. One of the criticisms pseudoscientists and anti-science types make of scientists is that we’re soulless and heartless, that our explorations bleed the joy and wonder out of life, but my experience is the opposite. Knowing more reveals the universe to be a wonderful place, full of interesting and marvelous things.

That’s the pep talk I basically gave myself before I wrote my response to the third grader who sent me a letter last week:

Dear [name removed],

Thank you for your letter. I’m glad to hear you’re learning interesting things about the Solar System. I teach astronomy classes at the college where I work, so I always try to learn new things about our universe every time I teach the class. One thing I love about astronomy is that you don’t need a telescope or a lot of expensive things to enjoy our universe: you just need to go outside and look up.

I first became interested in space when I was a little younger than you. There was a space probe called Voyager 2 that was sent to explore the four largest planets in the Solar System, and I saw the pictures it took of Jupiter in National Geographic magazine. That was the first time I really understood that there are worlds other than Earth, and I saw how interesting those worlds are.

Fomalhaut with a ring of gas and one of its planets

One thing that we know now that we didn’t know when I was young is that there are a lot of planets orbiting– astronomers have found over 500 planets in other solar systems! One of these systems is called Fomalhaut (if you say “foam a lot”, it’s close enough), and we can see how planets form. A star forms in the middle of a cloud of gas, and little lumps in the cloud form into planets. Scientists think this is how planets in our Solar System formed, too.

Saturn

The planet I find most interesting right now is Saturn. The Cassini space probe is orbiting Saturn right now and taking pictures of the planet and its moons. Saturn is like a smaller brother to Jupiter: it’s made of the same stuff and it has a lot of big storms like Jupiter does. Saturn’s rings are not only beautiful, they are very interesting because of how they are shaped and how Saturn’s moons help make them the way they are.

Saturn's moon Enceladus

Since they are made of ice, they shine brightly in the Sun and light up Saturn even when it’s night on the planet. Saturn has a lot of interesting moons, too, including Titan, which is bigger than Mercury and has a thicker atmosphere than Earth, though we couldn’t live there – it’s too cold and the air has poisonous gases like methane and ammonia. Another moon is Enceladus, which is covered with ice, but has a big ocean underneath kept warm by volcanoes. Some scientists think there could be life in the ocean underneath that ice, which I think is very exciting.

I hope you keep learning more interesting things about our Solar System and our universe!

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13 Responses to “A Letter from a Third Grader, Part 2: My Response”


  1. 1 Stephen Liverpool February 3, 2011 at 10:11

    Once I initially commented I clicked the -Notify me when new comments are added- checkbox and now each time a remark is added I get 4 emails with the identical comment. Is there any method you can remove me from that service? Thanks!

  2. 3 Surf Nicaragua February 12, 2011 at 10:06

    Wow, awesome blog layout! How long have you been blogging for? you make blogging look easy.


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