SN Online

ON THE SCENE BLOG
Spinning neutron stars called pulsars keep turning up in new and exotic flavors. Read “Weird pulsars debut at Beijing astronomy meeting.”

SCIENCE & SOCIETY
The world’s first moonwalker left a legacy of exploration. See “Neil Armstrong, first man on moon, dies at 82.”

NUMBERS
The busiest air-traffic hubs aren’t always tops for epidemics.