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K4621 - Astronomy & Space  Far Out  Measuring the Universe

Astronomy & Space Far Out Measuring the Universe
Item No. K4621

Astronomy & Space Far Out Measuring the Universe

Series: Show Me Science Advanced Astronomy & Space
Item No: K4621
Length: 11 minutes
UPC: 709629046214
Copyright: 2014
CC: Yes
MARC Record: Yes
Language: English
Grade Level: 6-12
Age Range: 12-18
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SRP: $44.95
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How far is a star or a galaxy? Scaling and measuring the cosmos is a complex problem. Scientists are integrating mathematical applications and scientific technology to create standards. Distances are so vast they are described in light years the distance light travels in a year. Nearby stars are measured by trigonometry the technique of parallax. Farther out, astronomers use so-called Ostandard candlesO, the OType Ia supernovaeO is the standard candle basis. Beyond that the electromagnetic OredshiftO of galaxies reveals their distances.

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