The private space company run by Elon Musk launched 60 satellites into orbit this week. Science correspondent Geoff Brumfiel explains why astronomers worry that kind of traffic — if it continues unabated — could permanently alter their ability to observe the night sky. Follow host Maddie Sofia on Twitter @maddie_sofia. Email the show at shortwave@npr.org.

The private space company run by Elon Musk launched 60 satellites into orbit this week. Science correspondent Geoff Brumfiel explains why astronomers worry that kind of traffic — if it continues unabated — could permanently alter their ability to observe the night sky. Follow host Maddie Sofia on Twitter @maddie_sofia. Email the show at shortwave@npr.org.