1.   This dark matter is of special interest to the particle physicists.

2.   Although the findings are preliminary, some cosmologists believe they are an early indication that standard, cold dark matter will emerge unscathed from the new tests.

3.   And so the question of what accounts for the dark matter remains appropriately up in the air.

4.   And that suggests how dark matter could simply be regular matter waving to us from another brane.

5.   And speaking of the exquisite balance of symmetry, please notice that I began this column with the Depression and ended it with dark matter.

6.   Another possibility is that the dark matter is slightly warm, giving it a pressure that resists compression.

7.   Anschutz has come to resemble dark matter, that elusive cosmic substance that cannot be seen directly but which can be detected by its intense gravitational effects.

8.   As long as dark matter eludes astronomers and particle physicists, they cannot be comfortably sure of the validity of their most cherished theories.

9.   As suggested by other recent observations, they found that the less luminous galaxies have lower densities of stars but higher densities of dark matter.

10.   As the primordial clouds of dark matter grow and congeal, so this theory went, ordinary matter sinks to the center and lights up.