Articles tagged "sdo"

a new kind of explosion on the Sun dec 17 2019

Solar Dynamics Observatory witnesses new kind of magnetic explosion on the Sun

NASA's legendary Solar Dynamics Observatory (SDO) has observed a new type of explosion on the Sun. Called "forced reconnection," this newly-discovered phenomenon was theorized 15 years ago. The discovery is expected to help scientists understand a...

December 18, 2019

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Anomaly places Solar Dynamics Observatory (SDO) in inertial mode

Following a lunar transit from 11:13 to 12:18 UTC on August 2, 2016, NASA's Solar Dynamics Observatory (SDO) did not go back into Science mode. More than 24 hours after the anomaly occurred, mission managers said the spacecraft is currently in inertial mode....

August 04, 2016


Ultra-HD timelapse: SDO's sixth year watching the Sun

The Sun is always changing and NASA's Solar Dynamics Observatory is always watching. Launched on February 11, 2010, SDO keeps a 24-hour eye on the entire disk of the Sun, with a prime view of the graceful dance of solar material coursing through the Sun's...

February 13, 2016


Complex mass of plasma: 'solar tornado' captured by SDO

A small, but complex mass of solar material gyrated and spun about over the course of 40 hours above the surface of the Sun from September 1 - 3, 2015. It was stretched and pulled back and forth by powerful magnetic forces in this sequence captured by NASA’s Solar

September 09, 2015


New videos released in honor of SDO's 5th anniversary

February 11, 2015 marks five years in space for NASA's Solar Dynamics Observatory, which provides incredibly detailed images of the whole Sun 24 hours a day.Capturing an image more than once per second, SDO has provided an unprecedentedly clear picture of how massiv

February 11, 2015

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The best observed X-class flare

On March 29, 2014 the sun released an X-class flare. It was observed by NASA's Interface Region Imaging Spectrograph, or IRIS; NASA's Solar Dynamics Observatory, or SDO; NASA's Reuven Ramaty High Energy Solar Spectroscopic Imager, or RHESSI; the Japanese Aer

May 08, 2014

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Solar Dynamics Observatoy (SDO) - Year 4

NASA's Solar Dynamics Observatory (SDO), launched on February 11, 2010, keeps a 24-hour eye on the entire disk of the Sun, with a prime view of the graceful dance of solar material coursing through the Sun's atmosphere, the corona. The

February 11, 2014


Solar Dynamics Observatory - Argos view

Argos (or Argus Panoptes) was the 100-eyed giant in Greek mythology. While NASA Solar Dynamics Observatory (SDO) has significantly less than 100 eyes, seeing connections in the solar atmosphere through the many filters of SDO presents a number of interesting

December 17, 2013


Watch Comet ISON live - Solar observatories schedule

On November 28, 2013 at 18:44 UTC Comet ISON will reach its perihelion and fly by about 1.2 million km (730 000 miles) above the solar surface​. Since space-based solar observatories will be recording its passage just follow the links and timetable below for

November 27, 2013


SDO Lunar transit (August 6, 2013)

For almost 1 1/2 hours the Moon made an appearance in NASA's Solar Dynamics Observatory's view on August 6, 2013. The Moon itself looks much bigger than the Sun - as the Moon is many times closer to Earth (and to SDO) than the Sun

August 07, 2013


Multiple views of solar activity - illustration

SOHO's latest "Picture of the week" edition released great graphic illustration of combination of Sun-observing spacecrafts coverage of solar events. From their positions near the Sun-Earth line, SDO and SOHO observed small CME on July 4, 2013. At

July 20, 2013


Solar magnetism revealed by SDO

By combining different images of the Sun, taken almost at the same time on June 7, 2013, the underlying magnetic structure of the Sun and how it appears above the solar surface can be revealed. SDO engineers combined a magnetic image of the Sun, where darker and

June 12, 2013


Solar Dynamics Observatory: Three Years of Sun in Three Minutes

In the three years since it first provided images of the sun in the spring of 2010, NASA's Solar Dynamics Observatory (SDO) has had virtually unbroken coverage of the sun's rise toward solar maximum, the peak of solar activity in its regular 11-year cycle. This video

April 22, 2013


SDO's 2013 solar spring eclipse season has begun

NASA's Solar Dynamics Observatory (SDO) has eclipse seasons twice a year near each equinox. Earth passes directly between the Sun and produces a series of eclipses from the point of view of the spacecraft.The first eclipse of the SDO Spring 2013 Eclipse Season

March 03, 2013

AIA 171

"It's a Loopy Sun" by NASA/SDO

NASA/SDO released a short video which covers January 5 through 7 and shows the 171 angstroms channel, which is especially good at showing coronal loops - the arcs extending off of the Sun where plasma moves along the magnetic field lines. The brightest spots

January 08, 2013

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JHelioviewer software: A different way to watch the Sun

JHelioviewer is visualization software that enables everyone, anywhere to explore the Sun. Developed as part of the ESA/NASA Helioviewer Project, it provides a desktop program that enables users to call up images of the Sun from the past 15 years. Software contains

November 24, 2012


What is happening with solar observing instruments right now?!

While trying to access SOHO's coronograph data we noticed that the latest LASCO C2 image is updated on August 18 at 13:36 and LASCO C3 at 13:30. Also, SOHO's EIT 304 latest image is from August 17 at 13:19, EIT 195 is from August 16 at 13:13 while EIT 171 and 284 show

August 19, 2012


Comet and Coronal mass ejection

A comet discovered by amateur astronomers on Friday, Sept. 30th, disintegrated in spectacular fashion the very next day when it plunged into the sun. The Solar and Heliospheric Observatory recorded the comet's last hours. The end was punctuated by an unexpected

October 04, 2011


Double eruption on Sun

On October 1st around 10:17 UT, widely-spaced sunspots 1302 and 1305 erupted in quick succession, revealing a long-distance entanglement which was not obvious before. NASA's Solar Dynamics Observatory (SDO) recorded the movie of the double blast:Since it was

October 02, 2011


An enormous filament of magnetism slithering over the sun's northeastern limb

Today, NASA's Solar Dynamics Observatory is monitoring sine wave 400,000 km long.  It's an enormous filament of magnetism slithering over the sun's northeastern limb:One of the wave troughs appears to be passing through the core of sunspot 1282. If so, an eruption

September 01, 2011


Several sunspots have popped up around the visible solar disk

Sunspots are emerging at several locations around the solar disk, peppering the Earth-side of the sun with active regions. Of particular interest is fast-growing sunspot 1282, shown here in an August 31st snapshot from NASA's Solar Dynamics Observatory:AR1282 has

August 30, 2011


New sunspots forming, Venus-directed CME

Yesterday, the Solar and Heliospheric Observatory witnessed a spectacular explosion on the sun that seemed to pass perilously close to Venus.As the movie shows, the CME passed harmlessly. There was no collision, and it wasn't even close. Although Venus seems to be

August 17, 2011


New sunspot is emerging over the Sun's northeastern limb

A big new sunspot is emerging over the sun's northeastern limb. AR1271 has at least four dark cores and it is crackling with small flares. The sunspot's entrance was captured in this 24-hour movie from the Solar Dynamics Observatory: NOAA forecasters...

August 16, 2011


Another M-class solar flare

A second M-Class flare, this time a M2.5 took place at 03:54 UTC Tuesday morning around Sunspot 1263. This is in addition to the earlier M3.5 flare which we reported yesterday. The first flare produced a small, but fast moving (2010 km/s) Coronal Mass Ejection...

August 09, 2011


Behemoth sunspot 1263 has almost doubled in size

Behemoth sunspot 1263 has almost doubled in size this weekend. A 28-hour movie from NASA's Solar Dynamics Observatory shows the spot developing a tail that has added some 50,000 km of length to the active region.This development may increase the likelihood of a stro

August 08, 2011


M1.4 Earth-directed solar flare took place

Magnetic fields above sunspot 1261 erupted this morning at 0648 UT, producing an M1-class solar flare. The blast also hurled a bright coronal mass ejection toward Earth. This movie from the STEREO-Ahead spacecraft shows the cloud racing away from the sun at almost

August 02, 2011

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Solar tsunami and dark fireworks on the Sun

On June 7, 2011, Earth-orbiting satellites detected a flash of X-rays coming from the western edge of the solar disk. Registering only "M" (for medium) on the Richter scale of solar flares, the blast at first appeared to be a run-of-the-mill eruption- that is, until

July 12, 2011


Behemoth sunspots evolve

The CME was not squarely Earth-directed and is not traveling at great speed, only minor geomagnetic storming is expected when the cloud arrives. A coronal mass ejection (CME) that billowed away from sunspot 1247 on July 9th could hit Earth's magnetic field on...

July 10, 2011


Spectacular eruption on the Sun - M2-class solar flare

At 06:41 UTC today the Sun unleashed an M2-class solar flare from arround the sunspot complex 1226-1227. Substantial Coronal Mass Ejection was observed and was visually spectacular. The large cloud of particles mushroomed up and fell back down looking as if it

June 07, 2011


Sundiving comet and coronal mass ejection

A comet dove into the sun on May 11th and seemed to trigger a massive eruption. Watch the movie, then scroll down for further discussion. A comet goes in; a CME comes out. Coincidence? Probably, yes, the sequence was coincidental. The comet disintegrated

May 12, 2011


Spectacular CME, active region approaching Earth

A sunspot located just behind the sun's eastern limb erupted during the waning hours of May 9th, hurling a spectacular coronal mass ejection into space: movie. NASA's Solar Dynamics Observatory photographed hot magnetic loops towering over the edge of the sun in the

May 11, 2011


The beautiness of solar flare

M3.6 solar flare occurred on February 24 near the solar esatern limb and blew out a gorgeous CME plasma waves that swirled and twisted over a 90-minute period. Some of the material blew out into space and other portions fell back to the surface. This event was

February 26, 2011