Astronomers have discovered a clump of 73 quasars that spans four billion light years at its widest point--that's like 40,000 Milky Way galaxies lined end-to-end. The only problem? Theory says the quasar cluster is too big to exist. Astronomer Gerard Williger and reporter Ron Cowen discuss this cosmological oddity, and other news about the cosmos.
Last weekend, air pollution in Beijing reached record highs, raising concerns about the cost of China's rapid industrialization. David Pettit, of the Natural Resources Defense Council, discusses the pollution problem in China's capital, and why severe smog can be deadly.
Aside from getting the flu shot, how do you outsmart the wily virus? Hoard hand sanitizer? Dodge door knobs? Or quietly slink away from coughing commuters? Dr. Nicole Bouvier, a flu researcher at Mount Sinai School of Medicine, talks about what works--and what doesn't--in avoiding influenza.
I was weaned on horror movies and love them inordinately, but the genre has gone to the dogs — and to the muscle-bound werewolves, hormonal vampires, flesh-eating zombies, machete-wielding psychos, etc. It's also depressing how most modern horror pictures have unhappy nihilist endings in which everyone dies and the demons pop back up, unvanquished — partly because studios think happy endings are too soft, but mostly because they need their monsters for so-called franchises.