SIS means SETI
Search for Extra-Terrestial Intelligence Intercept System in
Astronomy
Similar to SIS
ABB - After the Big Bang
ABBA - ADC Backend For Bolometer Array
ABF - Astronomische Beeldverwerkings Faciliteiten
AC - Ascendant Cusp
AC - Active Coronae
ACA - Atacama Compact Array
ACIT - Automatic Comet Imaging Telescope
View all in Astronomy