Arecibo Observatory Scientists Help Unravel Surprise Asteroid Mystery
When asteroid 2019 OK suddenly appeared barreling toward Earth on July 25, 2019, Luisa Fernanda Zambrano-Marin and the team at the Arecibo Observatory in Puerto Rico jumped into action.
After getting an alert, the radar scientists zoned in on the asteroid, which was coming from Earth’s blind spot — solar opposition....
