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In these research challenges, you will answer questions that really matter to
astronomers. You figure out how to answer the question, collect data with
SkyServer tools, interpret the data, and understand the universe.
These research challenges can be used for:
Click a name or image to choose a research challenge:
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The Milky Way
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Compare stars in the Milky Way disk to stars far from the
disk. What similarities and differences do you see? What does that
tell you about the structure of our galaxy?
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Small Galaxies
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Some galaxies are spirals, and some are ellipticals. Sometimes, it's easy to tell
which is which. But when a galaxy is very small, you can't recognize its shape. Can
you still tell whether it is spiral or elliptical based on observations of the galaxy?
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Quasar Spectra
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Quasars are some of the most distant and mysterious objects in the universe. What can their
spectra tell us about what they are?
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Map the Universe
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From our point of view on Earth, we can see millions of galaxies, all over the sky, at many
different distances. Where are all the galaxies, and what can they tell us about the Universe we
live in?
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HII Regions
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Find HII regions, the areas of glowing gas in other
galaxies where stars are born. As you find them, you'll help the
SDSS improve its photo processing software, which mistakes these
regions for separate galaxies.
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