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Tracy Drain

๐Ÿ‘ค Speaker
473 total appearances

Appearances Over Time

Podcast Appearances

Conversations
The giant spacecraft on its way to Jupiter's icy moon

I'm not 100% sure.

Conversations
The giant spacecraft on its way to Jupiter's icy moon

Yeah, sadly, no.

Conversations
The giant spacecraft on its way to Jupiter's icy moon

Orbiting around Europa would expose us to way more radiation than our spacecraft is designed for.

Conversations
The giant spacecraft on its way to Jupiter's icy moon

So we're going to orbit around Jupiter.

Conversations
The giant spacecraft on its way to Jupiter's icy moon

And in the beginning of the mission, every 21 days, we will fly by Europa and take a whole bunch of measurements with our suite of science instruments and then orbit.

Conversations
The giant spacecraft on its way to Jupiter's icy moon

Almost midway through the mission, we will shift down to every 14 days flying by.

Conversations
The giant spacecraft on its way to Jupiter's icy moon

So over the course of four years, we'll do about 50 science flybys.

Conversations
The giant spacecraft on its way to Jupiter's icy moon

Oh, good question.

Conversations
The giant spacecraft on its way to Jupiter's icy moon

We are actually going to be high enough above the clouds of Jupiter that it's not going to affect the spacecraft, that we really just treat it like one big massive planet in order to keep our trajectory in the form that we want it to be.

Conversations
The giant spacecraft on its way to Jupiter's icy moon

But I know a little bit about the weather on Jupiter because I spent time working on the Juno mission, which has been in the Jupiter system since 2016.

Conversations
The giant spacecraft on its way to Jupiter's icy moon

Also orbiting Jupiter in a much bigger orbit about every 53 and a half days, going by and taking a lot of measurements of the planet there.

Conversations
The giant spacecraft on its way to Jupiter's icy moon

And we know that Jupiter is just gorgeous.

Conversations
The giant spacecraft on its way to Jupiter's icy moon

When you close your eyes and think about what you've seen in school books of Jupiter, you see these lovely tiptoes.

Conversations
The giant spacecraft on its way to Jupiter's icy moon

tan and kind of orange and a little reddish cloud structures and then the huge great red spot that we all know about.

Conversations
The giant spacecraft on its way to Jupiter's icy moon

And what I learned is that the darker bands that you see are actually deeper in the clouds than the lighter bands.

Conversations
The giant spacecraft on its way to Jupiter's icy moon

And one of the reasons that the scientists know that is the comet Shoemaker-Levy 9 impacted with Jupiter in 2009.

Conversations
The giant spacecraft on its way to Jupiter's icy moon

And it was broken up as it came into the system and as the individual pieces went in.

Conversations
The giant spacecraft on its way to Jupiter's icy moon

Unfortunately,

Conversations
The giant spacecraft on its way to Jupiter's icy moon

For us, at least in the United States, when we had telescopes that were watching Jupiter, the impacts happened on the backside.

Conversations
The giant spacecraft on its way to Jupiter's icy moon

And so you had to wait until Jupiter rotated around.