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Hubble trouble or Superbubble? Astronomers need to escape the 'supervoid' to solve ...
"The KBC supervoid is a region that is about 20% less dense than the cosmic average, centered roughly where we are and ...
Detecting the gravitational wave memory effect from core-collapse supernovae
Einstein's theory of gravity, general relativity, has passed all tests with predictions that are spot-on. One prediction that ...