We think Type Ia Supernovae are direct collisions of White Dwarfs
Science for Families -- Stars and Supernovae
Strong evidence that type Ia supernovae are collisions of white dwarfs
Short proof of Abel's theorem that 5th degree polynomial equations cannot be solved
Integrated luminosity provides strong constraints on type Ia, II, Ibc and luminous supernova
?חידת קופרניקוס: למה חלפו 2,000 שנה עד לגילוי שכדור-הארץ מסתובב סביב השמש