Astro2020 Science White Paper: Are Supernovae the Dust Producer in the
  Early Universe?
  Whether supernovae are a significant source of dust has been a long-standing
debate. The large quantities of dust observed in high-redshift galaxies raise a
fundamental question as to the origin of dust in the Universe since stars
cannot have evolved to the AGB dust-producing phase in high-redshift galaxies.
In contrast, supernovae occur within several millions of years after the onset
of star formation. This white paper focuses on dust formation in supernova
ejecta with US-Extremely Large Telescope (ELT) perspective during the era of
JWST and LSST.
