The timescales to replenish dust from the cool , dense winds of Asymptotic Giant Branch stars are believed to be greater than the timescales for dust destruction .
In high redshift galaxies , this problem is further compounded as the stars take longer than the age of the Universe to evolve into the dust production stages .
To explain these discrepancies , dust formation in supernovae ( SNe ) is required to be an important process but until very recently dust in supernova remnants has only been detected in very small quantities .
We present the first submillimeter observations of cold dust in Kepler ’ s supernova remnant ( SNR ) using SCUBA .
A two component dust temperature model is required to fit the Spectral Energy Distribution ( SED ) with T _ { warm } \sim 102 K and T _ { cold } \sim 17 K. The total mass of dust implied for Kepler is \sim 1 M _ { \odot } - 1000 times greater than previous estimates .
Thus SNe , or their progenitors may be important dust formation sites .