The Southern African Large Telescope (Salt) near Sutherland is celebrating 20 years of observing the night sky.
Plus, the Geminid meteor shower peaks on the night of Dec. 13-14, and the winter solstice arrives Dec. 21 at 10:03 a.m.
Find out what's up in your night sky during December 2025 and how to see it in this Space.com stargazing guide.
In the shadow of Manhattan’s gleaming skyscrapers lies a treasure hunter’s paradise where vintage Leicas sit beside artisanal hot sauce, and yesterday’s castoffs become tomorrow’s conversation pieces ...
Rybicki, M. (2025) Black Hole as a Topological Hole in the Fabric of Spacetime. Journal of Modern Physics, 16, 1799-1817. doi ...