Word: lasting
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Dates: during 1990-1999
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Although they're not certain what is causing the blasts, astronomers attending last week's conference have some ideas. When ordinary stars burn out, they may become neutron stars, dense bodies with gravity fields so powerful that a marshmallow falling into one would release as much energy as a thousand hydrogen bombs. If two of these bodies began orbiting each other, they would ultimately collide, leading to titanic gamma-ray blasts. Other researchers believe the bursts are due to especially large supernovas, great stellar outbursts called hypernovas...
...Three years later, a larger satellite with keener vision will conduct similar work in more depth. "Classical astronomers thought stars produced a steady emission in one wavelength," says Gehrels. "Now we realize we have all these flashing, transient things going on." Modern astronomers --with their modern machines--may at last determine what some of those strangest things...
...shroud is starting to come off that mystery, thanks to a discovery reported last week in the journal Science. Digging in Madagascar, an international team headed by John Flynn of Chicago's Field Museum has unearthed the fossil jaws of two dinosaurs that appear to be around 230 million years old. "These are either the earliest or among the earliest dinosaurs known," comments University of Pennsylvania paleontologist Neil Shubin. The scientists also found fossils of eight other primitive animals, some of which are a key to the evolution of mammals, which arose at about the same time as the dinosaurs...
...with help from Hewlett-Packard and Microsoft, has developed a hand-held wireless device that allows doctors to deliver your Rx straight to the pharmacist's computer. Given the rapid increase in drugs with similar names, it's a technology that could save medical careers, not to mention lives. Last week in West Texas, a court ordered cardiologist RAMACHANDRA KOLLURU to pay $225,000 to the family of a heart patient who died after receiving the wrong medication. He got Plendil instead of Isordil, because the pharmacist couldn't read what Kolluru had ordered...
...WONDER YEARS For 27 years, researchers at the University of North Carolina followed the progress of children enrolled in quality child-care programs. Last week they revealed that those who attended such programs soon after birth through kindergarten maintained the positive effects of the education into adulthood, doing better on reading and math tests than those who didn't receive such an education...