Happy Discovery Day, SN87A! Posted on March 1, 2020March 1, 2020 by Rubber Ducky It’s been 33 years since you first captured our attention! We’ve been learning from you ever since! Can’t wait to see what other new discoveries you will set into motion! To learn more about SN87A, please visit here and here! -DDO Defenders : ) 40 SHARES Share on Facebook Tweet Follow us Posted in Uncategorized.