Black holes are super-heavy, collapsed giant stars whose gravity is so powerful not even light can escape their surfaces.
Their orbits cross those of Jupiter, Saturn, Uranus and Neptune, whose gravity fields occasionally deflect a comet towards Earth – once about every 40,000 to 100,000 years.
Here are just three examples, which we have also examined, whose gravity readers can decide for themselves: To begin with an example that blends mistakes with invention, consider Figes's treatment of Natalia Danilova (p. 253), whose father had been arrested.
In 1970, he committed suicide, leaving behind him a body of work whose gravity of utterance and persuasive beauty makes him for many the central poetic intelligence of the last 50 years.
The results confirm studies that have concluded that a vast majority of the cosmos is not ordinary matter but dark matter, whose gravity is felt but which has not been detected directly.
Rich in the abundant ices, these bodies coalesced into large protoplanetary cores whose gravity was strong enough to attract the lightest elements, hydrogen and helium, and form very massive objects the gaseous outer, or giant, planets Jupiter, Saturn, Uranus, and Neptune.
WIMP's are predicted by advanced theories of physics and could account for the mysterious "dark matter" whose gravity is believed to keep galaxies like the Milky Way from breaking apart, and that probably allowed them to form in the first place.
The latest puzzle to be cleared up involves the origin of one of the outermost rings, a thin, faint one labeled G. Saturn's rings are largely made up of ice and dust, and in most cases scientists are able to pinpoint a nearby moon that is either the source of the particles or whose gravity helps confine them.
The simulations, performed on a network of 70 computer processors, begin with the universe as a nearly smooth mixture of hydrogen, helium and the mysterious dark matter— perhaps clouds of as-yet-unidentified elementary particles — whose gravity shapes the distribution of matter in the universe.
Mostly asteroids live peacefully in the asteroid belt between Mars and Jupiter, whose gravity, so the standard story goes, keeps them too stirred to coalesce into a planet but can cause them to collide and rebound in the direction of Earth.
Most of the other cases have been crimes, pure and simple, whose gravity was sometimes wilfully concealed by the expedient of shifting paedophile priests from one parish to another.The laity, who feel they might never have learned of any of this if the media, and especially the Boston Globe, had not laboured to unearth it, now passionately want the hierarchy to put its house in order.
