Gamma-ray bursts may repeatedly wipe out life
Chances of sentient beings on other planets may be lower than thought
![sterilizing gamma ray bursts](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2014/12/ag_graph.png?fit=730%2C473&ssl=1)
CHANCE OF LIFE Because sterilizing gamma ray bursts occur more frequently near centers of galaxies, more-distant planets in the Milky Way have a greater likelihood of evolving life forms, scientists have calculated.
Courtesy of R. Jimenez, adapted by E. Otwell