Michelle Thaller
speaker
1,835 appearances
1 recordings
1 series
first heard May 2026
last heard 28 May
Michelle Thaller’s voice in public audio — every appearance, attributed to the second.
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recordings per month · last 12 monthsRecordings per month over the last 12 months — 1 in all, peaking in May 2026 with 1.
Appearances
But in the case of the GPS satellites, the GPS satellites are in what we call a medium orbit.
They're not as far away as the geostationary satellites.
But they're not actually going that fast.
They're only going about 9,000 miles an hour around the Earth.
The astronauts in the space station, by the way, are going much faster.
They're going more, let's say, approximately 20,000 miles an hour.
So the GPS satellites are going a little slower.
And yeah, 8,000 miles an hour is a lot, and that does slow your time down.
But the bigger effect for GPS satellites is how far away from the Earth they are.
We're actually going slower in time than they are because we're closer to the Earth's gravity.
And they're so far away, they're actually going a little faster than we are in time.
Now, they're also slowed down by their fast velocity.
The faster you go, the slower your time goes.
But people don't realize there's another factor, and that's how far away you are from gravity.
For the astronauts, the astronauts are closer to the Earth, right?
So they're actually not so far away as the satellites, and they're going much faster.
So for the astronauts, it's the motion.
It's the time dilation from the motion that's a bigger effect.
If you are on the space station for a year, you come back about one one-hundredth of a second younger than you should be.
And, you know, obviously that's not a big deal, but it's easily measurable.
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