NASA Sun & Space Profile picture
We study the Sun and how it affects space around Earth and other worlds, producing key knowledge to protect astronauts, satellites and robotic missions.
Nov 9, 2017 • 11 tweets • 6 min read
September was 🔥 on the Sun! It released 31 sizable solar flares and several coronal mass ejections in just 5 days. We and our partners are always watching the Sun, so we saw these events from several perspectives. Thread 👇 First things first: A solar flare is powerful burst of light radiation, and intense flares can interfere with communications.

A coronal mass ejection (CME) is a cloud of solar material + magnetic fields. They can spark #aurora.