One of the largest known stars — a red supergiant — suddenly shrank and heated up, transforming into a different kind of star.
The post Astronomers Witness Transformation of One of the Largest Stars appeared first on
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One of the largest known stars — a red supergiant — suddenly shrank and heated up, transforming into a different kind of star.
The post Astronomers Witness Transformation of One of the Largest Stars appeared first on
The solar cycle has ramped up, and it's a great time to photograph this captivating target.
The post Solar Photography: Catch the Sun appeared first on
A purely pragmatic look at the cost of doing it yourself.
The post Telescopes: To Build or Buy? appeared first on Sky & Telescope.
Grinding your own mirror can be great fun - and result in an excellent telescope.
The post Pushing Glass: How to Grind Mirrors appeared first on Sk...
Your pretty pictures can contain valuable information.
The post Science with Astrophotography appeared first on Sky & Telescope...