zoom_in Click to enlarge

STEREO

▲ ▼

language

description STEREO Overview

STEREO (Solar TErrestrial RElations Observatory) is a NASA solar observation mission launched in 2006. It utilizes two nearly identical spacecraft placed in heliocentric orbits ahead of and behind Earth. This orbital configuration allows the observatories to capture stereoscopic images of the Sun and its phenomena. The mission provides researchers with continuous three-dimensional observations of coronal mass ejections and solar flares.

help STEREO FAQ

What was the primary scientific purpose of NASA's STEREO mission?

Launched by NASA in 2006, the STEREO mission utilized two nearly identical spacecraft to provide the first-ever stereoscopic 3D imaging of the Sun. This allowed scientists to track coronal mass ejections and solar storms much more accurately than single-perspective Earth satellites.

Where are the STEREO spacecraft located in relation to Earth?

The two spacecraft, known as STEREO-Ahead and STEREO-Behind, were placed into orbits slightly different from Earth's so they would drift slowly away from our planet in opposite directions. This allowed them to monitor the sides and far side of the Sun that are invisible from Earth.

Is the STEREO mission still active today?

After a brief period of lost communication, NASA successfully re-established contact with the STEREO-Behind spacecraft in 2016, though it was later lost again. The STEREO-Ahead spacecraft, however, is still actively returning scientific data to this day.

Why do we need stereoscopic images of the Sun?

By viewing the Sun from two different angles simultaneously, scientists can accurately measure the trajectory and speed of solar flares and coronal mass ejections. This data is crucial for predicting space weather events that can disrupt satellites and power grids on Earth.

swap_horiz

Looking for STEREO alternatives? Compare top competitors ranked & scored

arrow_forward