WASHINGTON - Exercise and Vitamin D supplements are the best ways to reduce the risk of falling in people aged 65 and over, a systematic review of over 50 clinical trials has found.

WASHINGTON - A new study has found that Botulinum neurotoxin type A (BoNT/A)-better known as Botox-reduces responses to an inflammation-related pain stimulus when injected into the spinal canal in mice.

WASHINGTON - NASA's next rover will blast Martian rocks with a rock-zapping laser instrument. The Chemistry and Camera (ChemCam) instrument on the rover Curiosity can excite a pinhead-size spot into a glowing, ionized gas. It then observes the flash through a telescope and analyzes the spectrum of light to identify the chemical elements in the target.