Ep. 677: The Answer is Always Dust
Astronomy Cast
00:00
The Effects of Dust on Observations
Dust makes things rather appearing. Second order, it makes things fainter. And there's also this really annoying characteristic of light going through dust getting scattered will end up having a preferential polarization. That can mask other effects or it can be caused to place different than where the light originated. It can do things like confuse how we look at the cosmic microwave background because there's a whole lot of dust between here and there.
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