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Episode 258: Small Kuiper Belt Object Found

Play Jan 21•4:26

The Hubble Space Telescope's Fine Guidance Sensors are targeting devices that lock onto "guide stars" and measure their positions relative to the object under observation, thus helping to point the telescope. But their data is useful for other purposes as well. By digging through 4.5 years of the data from the sensors, astronomers were able to identify the smallest Kuiper Belt Object ever found...

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