Dr. Mark Hammergren, astronomer at the Alder Planetarium, joins Mike to discuss asteroids, their trajectory and what we can expect to see when one passes very close to Earth next week.

(NASA graphic)
Dr. Mark Hammergren, astronomer at the Alder Planetarium, joins Mike to discuss asteroids, their trajectory and what we can expect to see when one passes very close to Earth next week.

(NASA graphic)