Phenomenon
Binary Merger
The collision of two compact objects.
The final coalescence of binary black holes, neutron stars, or mixed pairs — major sources of gravitational waves and (sometimes) electromagnetic counterparts.
Overview
The final coalescence of binary black holes, neutron stars, or mixed pairs — major sources of gravitational waves and (sometimes) electromagnetic counterparts.
See also
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.
Planetary Conjunction
When two worlds appear to meet in the sky.