A cluster brimming with millions of stars glistens like an iridescent opal in this image from NASA's Spitzer Space Telescope. Called Omega Centauri,...
The sun's first rays begin illuminating Earth's atmosphere in this photograph from the International Space Station as it orbited 260 miles above the...
The spectacular aurora borealis, or the “northern lights,” over Canada is sighted from the space station near the highest point of its orbital path....
A disk of hot gas swirls around a black hole in this illustration from Dec. 20, 2022. A long stream of hot gas on the right, coming from a star that...
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