NOAA and NASA Open a New Set of Eyes on the Sun

Look out SDO—there’s another set of eyes watching the Sun in a wide swath of wavelengths! The images above are the first from the Solar Ultraviolet Imager (SUVI) instrument aboard NOAA’s new GOES-16 satellite, positioned in a geostationary orbit about 22,200 miles from Earth. These are SUVI’s first successful test images, captured on Jan. 29, 2017; once fully…

Solar Photographer Spots Mercury On Its Trip Across the Sun

On May 9, 2016, over the course of seven and a half hours beginning at 7:12 a.m. EDT (11:12 UTC) Mercury passed across the disk of the Sun, appearing to observers on Earth as a small dark dot in front of the massive brilliance of our home star. While the event wasn’t visible to the naked…

SDO Enters Its Seventh Year Observing Our Sun

Happy Launchiversary SDO! NASA’s Solar Dynamics Observatory lifted off aboard an Atlas V rocket from Cape Canaveral on Feb. 11, 2010, and has been observing our home star in high-definition ever since. SDO has provided us with unprecedented views of the Sun’s ever-changing atmosphere and data on the space weather it creates over the course of…

Hinode Watches the Sun Weave Its Magnetic Web

Many of the features seen on the Sun might look like tongues of flame or fiery eruptions, but there’s no fire or lava on the Sun – its energetic outbursts are driven by powerful magnetic fields that rise up from its internal regions and twist, loop, and coil far out into space. In addition to these…

Four Years of SDO

It’s hard to believe it’s already been four years that NASA’s Solar Dynamics Observatory has kept a watchful eye on our home star, but here we are: 2014, and the four-year anniversary of the Feb. 11 launch has come and gone. Amazing. But what’s even more amazing are all the incredible observations and discoveries SDO…

Watch the Sun’s Skin Split Open (and Then Heal Itself)

Like some kind of stellar superhero (or maybe a cosmic vampire!) our Sun’s surface splits apart and then fuses itself back together in this mesmerizing video from SDO and the folks at NASA’s Goddard Space Flight Center — check it out! All right now, while the Sun doesn’t really have skin like we do or…

Experience Eclipse Totality (VIDEO)

Totality — that brief period during a solar eclipse when the Moon is completely centered in front of the Sun’s disk — is a truly amazing sight, so much so that many people who have seen it once (a privileged group that doesn’t include me, sadly!) will travel across the globe in an effort witness…

“Birthday Candles” on the Sun

Make a wish! Scientists at the Naval Research Laboratory have identified new “birthday candle” structures in the Sun’s super-hot corona that may shed some light on the way its magnetic fields evolve — especially near the edges of vast, dark, wind-spewing coronal holes.

A Solar “Danse Macabre”

NASA’s Solar Dynamics Observatory captured a video on March 27 – 28 showing two large areas of “dark” plasma on the Sun’s limb, twisting and spiraling in our star’s complex magnetic field. The southern region bears an uncanny resemblance to three figures swaying to some spooky, unheard music… a real “danse macabre” on the Sun! Watch the…