Common research topics include black holes and neutron stars.

He said the violations included difficulties with the heating and hot water systems, holes in the hallways, and broken doors.

These boards did not generally include extra pegging-out holes or holes to count games.

Dedicated gun lockers are likely to include holes in the cabinet to accommodate such bolting.

His research interests include the early universe, dark matter, general relativity, primordial black holes, and the anthropic principle.

Other work includes black holes and Chaos theory.

His current areas of research include galaxy clusters, active galactic nuclei, strong gravity, black holes and the X-ray background.

Topics include stellar life cycles, radio astronomy, artificial satellites, black holes, neutron stars and many others.

Set on a series of low rocky hills it includes several challenging holes.

Obstacles include enemy turrets, black holes, asteroids, and narrow environments which restrict the player's movement.