Planck relic

== English == === Noun === Planck relic (plural Planck relics) (physics, cosmology, astronomy, astrophysics, quantum mechanics, relativity theory) A black hole with an event horizon on the order of a Planck length (~ 10-35 metres), and a mass on the order of a Planck mass (~ 20 micrograms). ==== Coordinate terms ==== ==== Related terms ====