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interplay between the Big Bang
coupled with inflation
and particle physics can
explain a great
deal about our present
universe including the cosmic
background, the absence of magnetic
the formation of atoms,
galaxies, and stars. Astrophysics including supernovae
rely on nuclear
and atomic physics as well as general relativity. The
Three Minutes by Steve Weinberg is the classic
of this story, albeit without inflation. Nearly all of
with the exception of the Hubble
expansion developed in the
last sixty years. Much of the information for this
come from research in space.
There are things that this picture does not yet explain. It explains what happened after the Bang but not the Bang itself. Cosmology is also linked to the other pillars of science.
Questions for the next forty yearsEven more precise measurements of the three degree radiation are needed along the lines of WMAP .
Dark energy and dark matter must be investigated.
Gravity waves using detectors like LIGO and LISA will get underway in earnest.
Will we be able to understand the fabric of space? Does it have more dimensions?
Will particle physics be a key?