A dazzling new Hubble image peels back the layers of the mysterious Egg Nebula, a rare and fleeting phase in a Sun-like ...
James Webb Space Telescope and the W.M. Keck Observatory captured new images of Saturn's moon Titan. Credit: NASA/STScI/W. M.
"The most likely explanation for the dimming is a brown dwarf – an object heavier than a planet but lighter than a star – ...
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