At 8.6 light-years away, Sirius B is the nearest known white dwarf star to Earth. Photograph courtesy NASA/ESA/H. Bond (STScl)/M. Barstow (University of Leicester) Red giants are hot enough to ...
In billions of years, our Sun will expand into a red giant, likely engulfing Earth before shrinking into a white dwarf—a dense ... The James Webb Space Telescope (JWST) is sensitive enough ...
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