Sky & Telescope March 2023 Magazine

In the March 2023 issue of Sky & Telescope, we’re diving into Earth’s vast oceans and asking: Where did they come from? Scientists long suspected that comets were the culprits, but now, carbonaceous chondrites have become the target of careful investigation. Then, we’re zooming out to take in a much bigger mystery, namely how galaxies get their spiral arms. And speaking of zooming out, we’re discussing how to adjust our imaging techniques to fit the latest cameras to hit the market. Once we’re all set up and ready to go, we’ll point those cameras at the light and dark nebulae of Monoceros, the Unicorn, as described in Richard Wilds’ article.