Not a Star Not a Planet Yet Hotter Than the Sun

There’s a bizarre object out in space that’s not a star and not a planet, but it’s hotter than the Sun! It’s called a “brown dwarf,” sometimes nicknamed a “failed star.” Brown dwarfs are too small to start nuclear fusion like real stars, but they’re much bigger and hotter than regular planets. One brown dwarf, called WD 0032-317B, is especially strange because it gets heated up by a nearby white dwarf (a super-hot leftover core of a dead star). This makes its atmosphere reach temperatures of over 14,000 degrees Fahrenheit, hotter than the surface of our Sun! It’s a wild example of how weird and surprising the universe can be.

Credit:
A Journey Into Andromeda: By NASA, ESA, J. Dalcanton (University of Washington), the PHAT team, and R. Gendler, https://svs.gsfc.nasa.gov/30124/
Kepler's Supernova Remnant: By Smithsonian Institution https://flic.kr/p/5tVWWm, https://commons.wikimedia.org/w/index.php?curid=51392778
CC BY 2.0 https://creativecommons.org/licenses/by/2.0:
Venus: By Kevin M. Gill - https://flic.kr/p/2jXHMt3, https://commons.wikimedia.org/w/index.php?curid=95498116
Venus - August 24 2016: By Kevin M. Gill - https://flic.kr/p/2jY1WHX, https://commons.wikimedia.org/w/index.php?curid=95498106
Eta Carinae: By geckzilla - https://flic.kr/p/QMu1J2, https://commons.wikimedia.org/w/index.php?curid=145992911
Freeman dyson: By Monroem, CC BY-SA 3.0 https://creativecommons.org/licenses/by-sa/3.0/, https://commons.wikimedia.org/w/index.php?curid=15509893
CC BY-SA 4.0 https://creativecommons.org/licenses/by-sa/4.0:
Large Magellanic Cloud: By Astro.sin, https://commons.wikimedia.org/w/index.php?curid=83165272
Structure of Stars: By ESO - http://www.eso.org/public/images/eso0729a/, CC BY 4.0 https://creativecommons.org/licenses/by/4.0, https://commons.wikimedia.org/w/index.php?curid=26372192
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