Phenomenon
Supernova Type Ib
Core-collapse of a star stripped of hydrogen.
A massive star that lost its hydrogen envelope before exploding — spectrum shows helium but no hydrogen lines.
Overview
A massive star that lost its hydrogen envelope before exploding — spectrum shows helium but no hydrogen lines.
See also
Supernova Type Ic
Core-collapse of a star stripped of hydrogen and helium.
Solar Eclipse
When the Moon stands between Earth and Sun.
Lunar Eclipse
When Earth's shadow falls on the Moon.
Meteor Showers
Cosmic dust burning in our atmosphere.
Aurora (Northern/Southern Lights)
Solar wind painting the upper atmosphere.
Supernova
The catastrophic death of a massive star.