The U.S. Naval Research Laboratory has a working prototype for a space-based solar energy collector and distributor that would beat the cloudy-day problem. David Biello reports

Stan Conte, vice president of medical services for the L.A. Dodgers, advised parents and coaches of young athletes to not consider Tommy John surgery on healthy arms for the sake of improving performance. He spoke at the SABR conference in Phoenix on March 13. Steve Mirsky reports

A consideration of the role of sootlike particulates and ozone implies that the climate should will not be insensitive to increasing levels of greenhouse gases. David Biello reports

Bats ate less fruit in lit areas than in dark ones, which may lessen their seed-dispersal activities needed to bring back slashed rainforests. Cynthia Graber reports.

After flu shot regulations upped Connecticut kids' vaccination rate, their hospitalization risk went down. Dina Fine Maron reports

The mere presence of a TV in a child's bedroom is linked with weight gain—regardless of how many hours per week a youngster watches it. Dina Fine Maron reports

The U.S. government has given industry permission to use of lethally loud seismic devices up and down the east coast. David Biello reports

Volunteers who handled receipts containing the hormone-altering compound bisphenol A for two hours showed elevated BPA levels in their urine. Dina Fine Maron reports

A new study attempts to quantify CO2 emissions if economic growth continues. David Biello reports

As more people move to cities, careful planning could mean a happy home for both humans and a substantial amount of wildlife. David Biello reports