First Images of the Sun from STEREO

Remember the recent launch of the STEREO spacecraft? These are two identical solar observing spacecraft which will give astronomers a thrilling 3-D view of the Sun. Officially, they’re the Solar TerrEstrial RElations Observatories (STEREO… get it?), and they were lofted into orbit on October 25.

After a separation maneuver using the Moon’s gravity, the two spacecraft are in the process of repositioning themselves into their final science orbits. Once spacecraft will lead the Earth in its orbit around the Sun, while the other will trail behind. With two different vantage points of the Sun, the spacecraft will give us that 3-D view of the Sun’s surface that should put everything in perspective. They should be in the final position by April 2007.

But NASA is already getting the spacecraft to take pictures. The photo you see with this story is a close up view of loops on the solar surface in a magnetically active region. STEREO observed this region on December 4th while a sunspot group was active. The long term goal is to see flares and coronal mass ejections in 3-D. With this perspective, astronomers should be able to tell if an ejection is headed towards Earth, and could disrupt communications on the planet.

Original Source: NASA News Release

Fraser Cain

Fraser Cain is the publisher of Universe Today. He's also the co-host of Astronomy Cast with Dr. Pamela Gay. Here's a link to my Mastodon account.

Recent Posts

How Many Additional Exoplanets are in Known Systems?

NASA's TESS mission has turned up thousands of exoplanet candidates in almost as many different…

1 hour ago

Hubble and Webb are the Dream Team. Don't Break Them Up

Many people think of the James Webb Space Telescope as a sort of Hubble 2.…

8 hours ago

Scientists Have Figured out why Martian Soil is so Crusty

On November 26th, 2018, NASA's Interior Exploration using Seismic Investigations, Geodesy, and Heat Transport (InSight)…

16 hours ago

Another Way to Extract Energy From Black Holes?

Black holes are incredible powerhouses, but they might generate even more energy thanks to an…

22 hours ago

Plastic Waste on our Beaches Now Visible from Space, Says New Study

According to the United Nations, the world produces about 430 million metric tons (267 U.S.…

2 days ago

Future Space Telescopes Could be Made From Thin Membranes, Unrolled in Space to Enormous Size

As we saw with JWST, it's difficult and expensive to launch large telescope apertures, relying…

2 days ago