A multi-wavelength image of the distant massive galaxy cluster, IDCS J1426.5+3508 (X-rays from Chandra in blue, visible light from Hubble in green, and infrared data from Spitzer in red). A new millimeter wavelength study of massive clusters with the South Pole Telescope has found good agreement with current ideas about galaxy cluster evolution. Credit: NASA Chandra, Spitzer, Hubble

An artist’s rendering of an exoplanet is shown. An exoplanet is a planet that exists outside Earth’s solar system. Credit: Illustration credit: NASA/Ames/JPL-Caltech

Sitting and low physical activity may accelerate aging in older women. Photo courtesty of Pixabay

This is a grid cell from the entorhinal cortex (EC) of the mouse brain, firing repeatedly and uniformly in a grid-like pattern. When a mouse moves through its environment, grid cells are activated, with each cell representing a specific location. This creates a triangular coordinate system that allows for spatial navigation. Several grid cells create a triangular coordinate system that allows for spatial navigation. The accumulation of tau protein in the brain of a mouse model of Alzheimer’s disease was shown to disrupt the function of grid cells, causing problems with navigation. The findings explains why Alzheimer’s patients tend to wander and get lost. Credit: Lab of Karen Duff, PhD, Columbia University Medical Center