Results 291 to 300 of about 242,972 (318)
Some of the next articles are maybe not open access.
Dark matter and dark matter candidates
Advances in Space Research, 2008Abstract The nature and identity of the dark matter of the Universe is one of the most challenging problems facing modern cosmology. Only 5% of the energy density of the Universe can be associated with known forms of matter. Problems for baryonic and neutrino dark matter imply the necessity to search beyond the standard model for dark matter ...
openaire +2 more sources
Philosophical Transactions of the Royal Society of London. Series A: Mathematical, Physical and Engineering Sciences, 1999
Summary: For over 50 years astronomers have been taking a careful inventory of matter in the universe. Comparing the visible mass with the amount inferred from dynamical estimators reveals that we do not know the nature of at least 90\% of the material in the universe.
openaire +1 more source
Summary: For over 50 years astronomers have been taking a careful inventory of matter in the universe. Comparing the visible mass with the amount inferred from dynamical estimators reveals that we do not know the nature of at least 90\% of the material in the universe.
openaire +1 more source
Scientific American, 2016
The article reports on the move of scientists to take a second look at conditions of dark matter due to disappointments to discover these elusive particles known as weakly interacting massive particles (WIMP). Topics include the time spent by scientists to look for flashes of light emanating from WIMPs striking xenon nuclei, and the possibility that ...
openaire +2 more sources
The article reports on the move of scientists to take a second look at conditions of dark matter due to disappointments to discover these elusive particles known as weakly interacting massive particles (WIMP). Topics include the time spent by scientists to look for flashes of light emanating from WIMPs striking xenon nuclei, and the possibility that ...
openaire +2 more sources
Weyl, Dirac and high-fold chiral fermions in topological quantum matter
Nature Reviews Materials, 2021M Zahid Hasan +2 more
exaly
To lower cancer risks, study shows that food choices matter
Ca-A Cancer Journal for Clinicians, 2023exaly

