The Siena Galaxy Atlas is a treasure trove of information for scientists studying the structure of the universe — and, it's free for the public to access.
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    The Siena Galaxy Atlas is a treasure trove of information for scientists studying the structure of the universe — and, it’s free for the public to access.

    And, beyond being of immense use for astronomers seeking hard data, the atlas also features beautiful images that are free for the public to access online and get to know our corner of the universe.

    Cosmic atlases of this type help astronomers spot patterns that help categorize new discoveries, such as stars that suddenly flare and then disappear  —  so-called “transients."

    This atlas represents peak accuracy, promising to be a gold mine of galactic information for scientists aiming to investigate everything from the births and evolutions of galaxies to the distribution of dark matter and propagation of gravitational waves through space.

    This means the SGA comprises an absolutely huge amount of cosmic information in one place, including the locations, shapes and sizes of hundreds of thousands of large galaxies relatively close to the Milky Way.

    The SGA could also help astronomers find the sources of gravitational wave signals detected on Earth because these faint ripples in the very fabric of space and time wash over our planet after traveling for millions of light years.

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