A new theory, rooted in Einstein s concept of general relativity, suggests "nestars" resembling Russian nesting dolls, challenging traditional concepts of celestial bodies and encouraging exploration of gravitational phenomena.
A new solution to Albert Einstein s theory of general relativity suggests hypothetical gravitational stars that look like black holes could be nested within one another.
Once hypothetical monsters born in a tangled nest of Einstein's general theory of relativity, black holes are now recognized as bona fide celestial objects as real as stars, moons, and galaxies.