Reviewing back...
- Martin
Three from NASA's Jet Propulsion
Laboratory in Pasadena, California, are part of this group that is helping to
further our understanding of the structure of the universe. Leading models of
the universe suggest it is mostly composed of entities they cannot see: dark
matter and dark energy. Dark matter acts like glue, holding galaxies and galaxy
clusters together gravitationally, while dark energy is thought to be
responsible for the accelerated expansion of the universe. In a strong
prediction of scientists, they came from the European Space Agency's Planck
satellite, which looks at the light from about 400,000 years after the Big
Bang. Scientists find that about 70 percent of the energy in the universe is
contained in dark energy. About 25 percent is composed of the mysterious dark
matter, with normal matter making up the remainder.
The results of those clues are
especially important to scientific community because they mark the first time
that observations from the more recent universe. The results come from the
first year, which uses a 570 -megapixel camera mounted on the 4 meter Blanco
Telescope, its data are processed at the National Center for Supercomputing
Applications. To measure dark matter, scientists first created maps of galaxy
positions using gravitational lensing and galaxy clustering. The DES team
developed new ways to detect the tiny lensing distortions of galaxy images, and
the new dark matter map is 10 times the size of the one DES released in 2015
and continues to grow.
by Dini Dwintika Karuniati
16611042
Article Science
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