Short answers, pulled from the story.
Satyendra Nath Bose and Albert Einstein developed the theoretical concept of Bose-Einstein condensate in 1924. Eric Cornell and Carl Wieman produced the first gaseous condensate on the 5th of June 1995 at the University of Colorado Boulder NIST, JILA lab.
Rubidium atoms must be cooled to 170 nanokelvins to form a Bose-Einstein condensate. This process occurs below a critical temperature that depends on particle density and mass per boson.
Superfluid helium-4 exhibits properties due to partial Bose-Einstein condensation of the liquid. The original theory requires heavy modification because interactions between atoms are relatively strong compared to gases.
Bose-Einstein condensates exist as quasiparticles such as magnons, excitons, and polaritons in solids. Condensation has been demonstrated in antiferromagnetic materials up to 14 K and even at room temperature in ferromagnetic yttrium-iron-garnet thin films.
The Cold Atom Laboratory experiment on board the International Space Station successfully created a Bose-Einstein condensate of rubidium atoms in June 2020. A consortium led by Ernst M. Rasel achieved the first creation of a Bose-Einstein condensate in space in 2017.