Astronomy May 2020

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In the May issue, learn why some astronomers are still questioning the Big Bang and how V.M. Slipher discovered the expanding universe. Also, observe edge-on and face-on galaxies, and learn more about backyard astronomy with Bob Berman.


Cosmic Mystery: Why the Big Band is still stumping astronomers

Space Clouds: Take a 3D look inside nebulae

Explore edge-on and face-on galaxies

How V.M. Slipher discovered the expanding universe

Bob Berman on backyard astronomy

Charting the 19th-century heavens

We test Canon's new astrocamera

Astronomy Discover