Latest Solar Dynamics Observatory Stories

Transit Of Venus Only A Day Away...Are You Prepared?
2012-06-04 10:00:17

[ Watch the Video ] Lee Rannals for redOrbit.com If you aren't looking up towards the sun tomorrow with the proper eye equipment, then a special moment is going to pass you by. The Transit of Venus is taking place on Tuesday, and it will not be seen again until 2117. The transits of Venus occur in pairs once every 100 years, so this upcoming transit is the last until the next generation gets their opportunity. Astronaut Don Pettit is up in the International Space Station armed...

Medium-Class Solar Flare Erupts On Tuesday
2012-05-08 10:14:19

Lee Rannals for RedOrbit.com [ Watch the Video ] A medium-class solar flare erupted from the Sun on Tuesday, prompting scientists to keep their eye on the region for a space weather impact on Earth. NASA said its Solar Dynamics Observatory (http://www.nasa.gov/mission_pages/sdo/main/index.html) caught the Sun pumping out an M1.4-class solar flare on the large active region 1476. According to the space agency, the images seen by SDO unveil temperatures of around 10 million degrees...

2012-04-09 09:46:20

[ Watch the Video ] One day in the fall of 2011, Neil Sheeley, a solar scientist at the Naval Research Laboratory in Washington, D.C., did what he always does — look through the daily images of the sun from NASA's Solar Dynamics Observatory (SDO). But on this day he saw something he'd never noticed before: a pattern of cells with bright centers and dark boundaries occurring in the sun's atmosphere, the corona. These cells looked somewhat like a cell pattern that occurs on the...

Comet Corpses In The Solar Wind
2012-01-21 04:13:51

[ Watch the Video ] A paper published in the Jan. 20th issue of Science raises an intriguing new possibility for astronomers: unearthing comet corpses in the solar wind.  The new research is based on dramatic images of a comet disintegrating in the sun's atmosphere last July. Comet Lovejoy grabbed headlines in Dec. 2011 when it plunged into the sun's atmosphere and emerged again relatively intact.  But it was not the first comet to graze the sun. Last summer a smaller comet...

SDO Helps Measure Magnetic Fields On The Sun's Surface
2012-01-19 13:34:38

[ Watch the Video ] A subset of data that helps map out the sun's magnetic fields was recently released from the Solar Dynamics Observatory (SDO). Observations that measure the strength and direction of magnetic fields on the solar surface -- known as vector magnetograms -- play a crucial role in understanding how those fields change over time and trigger giant eruptions off the surface of the sun such as solar flares and coronal mass ejections (CMEs). Collecting the information needed...

Comet Survives Close Encounter With Our Sun
2011-12-18 06:18:30

[ Watch the Video ] On December 16, an armada of spacecraft witnessed something that many experts thought impossible.  Comet Lovejoy flew through the hot atmosphere of the sun and emerged intact. "It's absolutely astounding," says Karl Battams of the Naval Research Lab in Washington DC.  "I did not think the comet's icy core was big enough to survive plunging through the several million degree solar corona for close to an hour, but Comet Lovejoy is still with us." The...

Word of the Day
  • To think; to imagine; to fancy.
  • To be of opinion; have the notion; think; imagine; suppose.
The word 'ween' comes from Middle English wene, from Old English wēn, wēna ("hope, weening, expectation"), from Proto-Germanic *wēniz, *wēnōn (“hope, expectation”), from Proto-Indo-European *wen- (“to strive, love, want, reach, win”).