
© NASA/CXC/Univ. of Bonn/K. Migkas et al.
Different galaxy clusters reveal different properties across the universe.
New NASA data presents a challenge to a fundamental principle of cosmology.
Less than a second after the
Big Bang, the universe suddenly blew up from nothing to a hot, dense sea of neutrons and electrons stretching across trillions of lightyears.
And, 13.8 billion years later, the universe is still expanding, albeit at a much slower rate.
The prevailing theory, known as the isotropy hypothesis, argues that the universe is not only expanding but doing so at the same rate in all directions. But a new study suggests that may not be the case at all.
In a
study published Wednesday in the journal
Astronomy and Astrophysics, astronomers challenge this cornerstone theory of cosmology. The results suggest that while the universe
is expanding, it is not expanding at the same rate in all directions.
Comment: Study: Solar storm damage to electrical networks dependant on regional geology