"Roses are red. Violets are blue. Your event horizon means I can't see you!" As that ugly verse shows, black holes aren't exactly conducive to romantic imagery on Valentine's Day. However, a new simulation revealed just in time for Feb. 14 shows how dancing black holes can "vibe" with one another, forming a cosmic love story that is literally written in the stars.
More precisely, the team behind the simulation discovered that binary black hole pairs formed in dense star clusters first align their spins before coming together and merging.
The discovery could explain mysterious signatures seen in gravitational wave signals detected by the Laser Interferometer, Gravitational-Wave Observatory (LIGO), and its co-detector Virgo.
