Sea surface height

 

Changes in sea level height from 1993 to 2017 compared with a long-term mean of the data. Blue and purple are lower than the mean; red, yellow and white are higher. Credit: NASA/JPL-Caltech

Credit: NASA Jet Propulsion Laboratory California Institute of Technology

Fermi caught me smashing up neutron stars

 

On Aug. 17, the Gamma-ray Burst Monitor on NASA’s Fermi Gamma-ray Space Telescope saw a short burst of gamma rays in a smashup of neutron stars, marking the first-ever detection of light from a gravitational wave source.

Credits: Fermi Space Telescope and NASA via Timm Drossart, animated GIFs and Google+