Word: earliest
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...Certainly, that's the earliest it could happen," he added. "We really don't want to touch a brick on Lowell House until the new bells are here...
...violence issue, the ratings people might say - and since they never explain their rationale, we have to guess at it - that kids are programmed from their earliest days to believe that sex is for real, where as violence is pretend. It's the difference between watching a video game in the basement and making an untimely visit to your parents' bedroom. For most American children, sex education begins just before puberty, but violence they can get from infancy in Tom and Jerry pain-fests on the Cartoon Network. Whatever the MPAA's argument, their raters must believe that kiss-kiss...
...finally, long-wavelength radio waves. The flash that came from the Big Bang started out as visible light; by now, 13.7 billion years later, it's still streaming through space, but it has been stretched so much that astronomers have to use microwave antennas to detect it. The earliest galaxies came after the Big Bang, so their light isn't quite as old, hasn't been traveling as long and thus isn't stretched as much. That light should be detectable not as microwaves but as infrared--which is why the new telescopes will be fitted with infrared sensors...
Until someone finds better evidence to the contrary, it's safe to assume that the very tiny galaxies filled with second-generation stars were by far the dominant type in the early cosmos. It would also have been safe to assume that nobody could spot them in their earliest incarnation without giant new telescopes--if not for Ellis. "He does like to push the frontiers," says theorist Norman with mixed amusement and respect. "It's always great fun to go to a meeting and see the latest Ellis most-distant-object sweepstakes entry...
...DARK MATTER Accounting for a bigger portion of matter than ordinary atoms, dark-matter particles were spread unevenly through the cosmos; areas of higher concentration drew in hydrogen and helium gas, gradually forming the first stars dense enough to burst into thermonuclear flame 3 FIRST STARS The earliest stars were massive, weighing in at 20 to more than 100 times the mass of the sun. The crushing pressures at their cores made them burn through their nuclear fuel in only a million years or so and caused them to spew radiation so intense that it kept other stars from forming...