Hinode's Solar Optical Telescope imaged the sun's chromosphere – a thin layer between the sun's surface and atmosphere – on Jan. 12, 2007. This image showcases the filament structure of solar material that is pulled and stretched by the sun’s complex and ever-changing magnetic forces.
NASA/JAXA/Hinode
Since its launch on Sept. 22, 2006, Hinode, a joint mission of the Japan Aerospace Exploration Agency (JAXA) and NASA, has been watching the sun nearly non-stop, providing valuable insight into our star - and others throughout the universe.
"The sun is terrifying and gorgeous, and it's also the best physics laboratory in our solar system," said Sabrina Savage, project scientist for Hinode at NASA's Marshall Space Flight Center in Huntsville, Alabama. "In the past 10 years, Hinode has focused on understanding our sun as a variable star."
Hinode has captured everything from solar explosions to the delicate motion of solar spicules, allowing scientists to study these phenomena in great detail.
One of the three instruments on board Hinode is the X-Ray Telescope (XRT), developed and built by the Smithsonian Astrophysical Observatory and JAXA. An image of the sun taken with the XRT was featured on the cover of the Dec. 7, 2008, Science magazine, which featured the first scientific results from Hinode.
As most of Hinode's instruments are still in good working order, the team behind Hinode hopes to delve even deeper into our nearest star.
"We recently adjusted mission operations to track a single target for several days, instead of jumping around among active regions," said Savage. "This new paradigm will allow us to get a more complete picture of active region evolution."