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...

CC BY 2.0 https://creativecommons.org/licenses/...

Venus: By Kevin M. Gill - https://flic.kr/p/2jXHMt3, https://commons.wikimedia.org/w/index...

Venus - August 24 2016: By Kevin M. Gill - https://flic.kr/p/2jY1WHX, https://commons.wikimedia.org/w/index...

Eta Carinae: By geckzilla - https://flic.kr/p/QMu1J2, https://commons.wikimedia.org/w/index...

Freeman dyson: By Monroem, CC BY-SA 3.0 https://creativecommons.org/licenses/..., https://commons.wikimedia.org/w/index...

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Large Magellanic Cloud: By Astro.sin, https://commons.wikimedia.org/w/index...

Structure of Stars: By ESO - http://www.eso.org/public/images/eso0..., CC BY 4.0 https://creativecommons.org/licenses/..., https://commons.wikimedia.org/w/index...

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