CQW is an educational resource for theoretical physics and astrophysics, field theory, relativity and cosmology. we post a new question every wednesday for students to get and for teachers to stay in shape.
Friday, December 23, 2011
is there a place in the Universe, which is colder than the CMB?
(Planck's cryostats don't count as an answer)
for bonus points: which is the hottest place in the Universe?