Kepler's Supernova Remnant: Was Kepler's Supernova Unusually Powerful?
In 1604, a new star appeared in the night sky that was much brighter than Jupiter and dimmed over several weeks. This...
NASA Observations Point to 'Dry Ice' Snowfall on Mars
Observations by NASA's Mars Reconnaissance Orbiter have detected carbon-dioxide snow clouds on Mars and evidence of...
Extreme Life Forms Might be Able to Survive on Eccentric Exoplanets
A hypothetical planet is depicted here moving through the habitable zone and then further out into a long, cold...
To Avoid Humans, Tigers Take Night Shift
A tiger’s eyes glow during the night on the...
Sea Life Color Codes Food to Evade Danger
An example of...
NASA Mars Rover Curiosity's Arm Wields Camera Well
This view of the lower front and underbelly areas of NASA's Mars rover Curiosity combines nine images taken by the...
Penn Researchers Make First All-optical Nanowire Switch
Laser light is emitted from the end of a cadmium sulfide nanowire.
Measuring mercury levels: Nano-velcro detects water-borne toxic metals
Coal plants like this one in West Chicago release mercury into the atmosphere which can end up in the water supply. This plant, the...
