Scientists, like Buddhist monks and Zen masters, have known for years that meditation can reduce anxiety, but not how. Scientists have now succeeded in identifying the brain functions involved.
Catching the attention of females in a darkened rainforest amid a blur of windblown vegetation is no easy task. But male Anolis lizards on the island of Jamaica have evolved an ideal visual technique. A new study now solves the mystery of why their close relatives on the neighboring island of Puerto Rico do not adopt the same strategy.
A flash of light from a stellar outburst has provided a rare look at the 3-D structure of material ejected by an erupting nova. Astronomers used NASA's Hubble Space Telescope to observe the light emitted by the close double-star system T Pyxidis, or T Pyx, a recurring nova, during its latest outburst in April 2011.
