Topic
Space weather
4 questions tagged Space weather — spanning every one of the seven Ws.
why
Why do auroras happen near the poles?
Earth’s magnetic field funnels charged particles from the solar wind toward the polar regions, where they collide with gases in the atmosphere.
AstronomySpace weather
what
What is a coronal mass ejection?
A coronal mass ejection, or CME, is a huge cloud of charged particles thrown out from the Sun. If aimed at Earth, it can trigger geomagnetic storms and auroras.
Space WeatherSun
what
What is the solar wind?
The solar wind is a continuous stream of charged particles flowing outward from the Sun. It shapes comet tails and helps create auroras when it reaches Earth.
Space WeatherSolar System
how
How does the Sun’s solar wind affect Earth?
The solar wind can disturb Earth’s magnetic field, causing auroras and sometimes geomagnetic storms. It can also affect satellites, radio communications, and power systems.
Space weatherSun-Earth system