NIST's new compact atomic clock design uses cold atoms to boost precision

Physicists at the National Institute of Standards and Technology (NIST) have demonstrated a compact atomic clock design that relies on cold rubidium atoms instead of the usual hot atoms, a switch that promises improved precision and stability.

The peculiar compact Blue Dwarf Galaxy

NASA's Hubble Space Telescope recently captured a rather impressive image of the irregular NGC 5253 galaxy.

New exoskeleton is lighter and cheaper

Vanderbilt engineers have developed an exoskeleton for people paralyzed below the waist that they say is more compact and cheaper than existing versions.