Alison Hewitt
- Indexed articles, last 90 days
- 2
- Latest publication
- Sep 16, 2026
- Outlet visibility, for UCLA
- Top 1M sites
- Earliest in this view
- Sep 16, 2026
Latest articles
Scientists finally know the body temperature of the Tyrannosaurus rex (opens the original)
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When picturing a scaled, toothy Tyrannosaurus rex stomping across North America, building nests and eating other dinosaurs, it’s easy to forget that scientists have gleaned everything we know about T. rex from clues left more than 60 million years ago. While the presence of fossils in Alaska suggested that this prehistoric ancestor of birds was already on the evolutionary path from cold-blooded reptile to warm-blooded avian, there wasn’t a way to take T. rex’s temperature — until now. UCLA scien
Earth’s atmosphere is getting less dusty. That could be adding to global warming (opens the original)
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Atmospheric desert dust has long swirled around the globe, but a new UCLA study presents the strongest evidence yet that global dust is mysteriously decreasing. Because atmospheric dust overall has a slight cooling effect on the climate, the researchers say its decrease may have contributed modestly to recent climate warming. The study, which combined satellite observations, ground-based measurements and atmospheric models, found that the amount of dust in Earth’s atmosphere decreased by about 1
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