STEREO Solar Mission News

A 360 Degree View of an X-class Flare and A CME

The two STEREO spacecraft now sit on opposite sides of the sun providing a view of the latest solar activity for the entire solar system.

STEREO Mission Celebrates Five Incredible Years of Science

On October 25, 2006 a Delta II rocket launched from Cape Canaveral carrying two nearly identical spacecraft. Each satellite was one half of a mission entitled Solar TErrestrial RElations Observatory (STEREO) and they were destined to do something never done before - see the entire sun simultaneou...

Space Storm Tracked from Sun to Earth

For the first time, a spacecraft far from Earth has turned and watched a solar storm engulf our planet. The movie, released today during a NASA press conference, has galvanized solar physicists, who say it could lead to important advances in space weather forecasting.

Scientists see solar outburst in exquisite detail

Combined data from the STEREO and ACE spacecraft are being used to study the structure of a CME in unprecedented detail, showing considerable evolution in the CME's internal structure as it moves from the Sun to Earth.

STEREO turns its steady gaze on variable stars

Researchers have discovered 122 new eclipsing binary stars and observed hundreds more variable stars in an innovative survey using NASA's two STEREO solar satellites.

STEREO sees the Entire Sun

On February 6, 2011, NASA released the first ever images of the entire Sun, using a combination of STEREO images together with data from the Solar Dynamics Observatory. This never before seen view was made possible by STEREO's unique viewing geometry.

Coming Soon - The Entire Sun

For the past 4 years, the two STEREO spacecraft have been moving away from the Earth and gaining a more complete picture of the sun. On February 6, 2011, NASA will reveal the first ever images of the entire sun and discuss the importance of seeing all of our dynamic star.

PUBLIC SPOT SIGNIFICANT SOLAR STORM HEADING FOR EARTH THIS WEEK IN FIRST FOR ...

For the first time scientists have used data analysed by the public to make a real-time prediction of a solar storm that should reach Earth on Monday 13 December, thanks to the Solar Stormwatch web project.

The initiative, launched in February by the Royal Observatory, Greenwich (ROG), in partner...

STEREO Sees the Farside of the Sun, Feb. 2011

Illustration of the positions of the two STEREO spacecraft show that they attain 180 degrees of separation in Feb. 2011, thus allowing the world to see the entire Sun for the first time.

STEREO sees Mercury's tail

Scientists from Boston University's Center for Space Physics (CSP) reported the presence of a comet-like tail in images of the planet Mercury taken by STEREO, in a presentation given September 22, 2010 at the European Planetary Science Congress (EPSC) meeting in Rome.

STEREO Mission
Official STEREO Website. See 3D views of the Sun and Heliosphere