Photo of an aurora taken at 09:11 UTC by Aaron Lojewski near Poker Flat. Direction of photo is to the northwest. Oxygen in the atmosphere emits the green and red streaks, whereas nitrogen causes blue auroras. Credit: Tape et al., 2020

Photo of an aurora taken at 09:11 UTC by Aaron Lojewski near Poker Flat. Direction of photo is to the northwest. Oxygen in the atmosphere emits the green and red streaks, whereas nitrogen causes blue auroras. Credit: Tape et al., 2020

EarthScope watches the sky


By Alka Tripathy-Lang and Wendy Bohon

January 25, 2021

High-latitude seismometers typically tasked with peering inside the earth can also record electromagnetic undulations in the sky.

To read more, head to the IRIS website.