STEREO: The Sun in 3D

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Mission Research

STEREO Science Objectives

  1. Understand the causes and mechanisms of coronal mass ejection (CME) initiation.
  2. Characterize the propagation of CMEs through the heliosphere.
  3. Discover the mechanisms and sites of energetic particle acceleration in the low corona and the interplanetary medium.
  4. Improve the determination of the structure of the ambient solar wind.

Mission Concept

STEREO provides a unique and revolutionary view of the Sun-Earth system. The satellites trace the flow of energy and matter from the Sun to Earth as well as reveal the 3-D structure of coronal mass ejections and help us understand why they happen. STEREO also provides alerts for Earth-directed solar ejections, from its unique side-viewing perspective adding it to the fleet of Space Weather detection satellites.

STEREO Capabilities

  1. First stereo viewing of Sun from out-of-Earth-orbit vantage points.
  2. First imaging and tracking of space weather disturbances from Sun to Earth.
  3. First continuous determination of interplanetary shock positions by radio triangulation.
  4. First simultaneous imaging of solar activity with in-situ measurement of energetic particles at 1 AU.


3D Glasses See the Sun Like STEREO Does
Learn how to make your own 3D glasses or find out where to buy them.

Museum multimedia resources STEREO 3D in Museums  →
High-resolution STEREO 3D images and movies are being displayed at museum and science center

Page Last Updated: October 10th, 2014
Page Editor: Holly Zell