24 October 2014 - Mission Day: 6902 - DOY: 297
Whats New
 
 

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January 30, 2011

December 17, 2011

October 5, 2011

June 22, 2011

    Space Weather: A Brief Introduction

    This 5-minute video clip with narration gives a coherent overview of the magnetic activity from the sun that we call 'space weather' -- how the Sun creates it and how this phenomenon creates aurora. The original animations provide an easy-to-understand explanation of the science, including the complex concept of magnetic reconnection that is at the root of most space weather. It was developed using content from many Norwegian research institutions by http://www.forskning.no, Norway's leading science portal on the web.

October 18, 2010

January 16, 2010

May 31, 2009

April 23, 2009

    SOHO/TRACE clip gets thousands of hits on YouTube!
    QuickTime (.mov) versions of the video: Large (284M), Medium (124M) and Small ( 70M).

April 8, 2009

April 2-5, 2009

March 22, 2009

March 15, 2009

September 24, 2008

September 22, 2008

June 1, 2008

December 3, 2007

September 27, 2007

February 22, 2007

February 6, 2007

November 16, 2006

October 1, 2006

    Celebrating Solar Week (Oct. 2-6)

    A semi-annual "on-line" learning event on the study of Earth's closest star in space, the Sun!

August 30, 2006

August 7, 2006

April 16, 2006

March 31, 2006

Deecember 1, 2005

November 9, 2005

September, 26 2005

September, 6 2005

June 6, 2005

    SOHO is pleased to announce that it is sponsoring a monthly art contest called Sunworks. It will run for 10 months and is being held as a part of SOHO's 10th anniversary celebration, which will occur on December 2, 2005.

May, 16 2005

March, 16 2005

    We are beginning a new section on the SOHO web site called Outreach Spotlight. Every few weeks we will post an article about an individual or group involved in outreach activities that in some way or another use SOHO data.

February, 10 2005

December, 2 2004

November, 23 2004

November, 23 2004

November, 8 2004

September 25, 2004

June 20, 2004

June 6, 2004

April 27, 2004

    21:00 UT: SOHO is back in normal mode.

    18:50 UT: The station keeping maneuver has been completed.

    Today we have programmed station keeping and momentum management maneuvers.

April 26, 2004

April 23, 2004

    SOHO is out of ESR (safe) mode and now is in CRP, and will remain in CRP during the weekend.

April 22, 2004

    Recovery from ESR has been postponed until tomorrow.

    SOHO entered ESR (safe) mode at 07:27 UT. The ESR was tiggered by another spurious FSPAAD (Fine Sun Pointing Attitude Anomaly Detector) anomaly. Recovery is in progress.

April 21, 2004

    SOHO entered ESR (safe) mode at 05:37 UT. The ESR was tiggered by the FSPAAD (Fine Sun Pointing Attitude Anomaly Detector).

April 19, 2004

March 30, 2004

March 18, 2004

November 6, 2003

October 29, 2003

October 28, 2003

October 14, 2003

August 18, 2003

    Sun As Art Exhibit to be displayed at the GSFC Visitor Center starting on August 21, 2003.

July 16, 2003

July 11, 2003

July 10, 2003

July 8, 2003

    Today: 180 degrees roll, station keeping, and momentum management maneuvers.

July 2, 2003

June 24, 2003

June 4, 2003

    There will be a 2 degree offpointing maneuver today.

May 8, 2003

May 6, 2003

April 18, 2003

March 14, 2003

    The Sun-Earth Connection:

    Between 18-23 March 2003, scientists across Europe and the world will be meeting the public to explain the newest theories about the way in which the Sun connects to and affects life on Earth. The Sun-Earth Days are an international celebration of our Sun and its connection to our lives, with exhibits and lectures to promote public awareness of the dynamics of our Sun and its influence on the Earth.

March 18, 2003

February 24, 2003

February 23, 2003

February 14, 2003

    A front-row seat for the Sun-dancing comet

    Although the spectacular comet NEAT will not be visible in the LASCO images until about 16:00 UT on February 16, it has in fact been tracked by SOHO's SWAN instrument since December 31 last year. The LASCO pictures of this comet are expected to be quite out of the ordinary, with a sizeable tail and a very bright (saturated) comet nucleus.

January 30, 2003

December 21, 2002

December 17, 2002

October 30, 2002

    NASA Press Release:

    Sun Puts a Show for All.

    Click here to go to the SOHO site for more details (with movies and high-resolution images).

September 20, 2002

    A Well-Studied Comet

    With the LASCO coronagraph, SOHO observes many sungrazing comets as they plunge into the Sun. Some of the brighter ones are also observed in ultraviolet light, when possible, with the UVCS instrument. One of the latest comets was caught at three different heights.

August 14, 2002

July 18, 2002

May 16, 2002

May 2, 2002

March 20, 2002

February 8, 2002

    17:56 UT: SOHO is back in normal mode. All instruments are powered on with the exception of CEPAC, which will follow Tuesday, February 12, and SUMER, which will wait until early April.

    14:50 UT: Momentum Management/Station Keeping maneuver has started.

February 7, 2002

    SOHO Featured in the: Astronomy Picture of the Day

    SOHO is preparing for Momentum Management/Station Keeping maneuver:

    ~15:00 UT currently in RMW (Roll Maneuver Wheels) mode.

February 6, 2002

    Instruments are being turned on one by one, checked out and safed manually, in preparation for a station keeping and momentum management manoeuvre which is planned for Friday, February 8. Tomorrow, the spacecraft will be put into RMW (Roll Manoeuvre Wheels) mode in preparation for the manoeuvre, and some further instruments may be turned on if time allows.

February 5, 2002, 12 UT

    SOHO is now in CRP mode.

February 5, 2002

    Around 02:30 UT on February 5, 2002, SOHO went into Emergency Sun Reacquisition (ESR) mode shortly after an interruption of the power supply to one of the reaction wheels. Power to all the instruments was also interrupted. Recovery from ESR mode into Coarse Roll Pointing (CRP) mode is proceeding, and the cause of the events is under investigation.

January 28, 2002

    ANNOUNCEMENT OF OPPORTUNITY: SOHO Guest Investigator Programme

    The European Space Agency (ESA) and the National Aeronautics and Space Administration (NASA) have announced a SOHO and Sun-Earth Connection Guest Investigator (GI) Programme, respectively, inviting the worldwide solar physics community to participate in the acquisition and analysis of SOHO data (ESA-SCI(2002)2 and NRA 02-OSS-01).

January 11, 2002

January 10, 2002

    A Fiery CME: Another spectacular Coronal Mass Ejection (CME) took off from the Sun in the early hours of January 4, starting off as a filament eruption seen by the Extreme ultraviolet Imaging Telescope (EIT) in the 195 images. The complexity and structure of the CME as it passed through the Large Angle and Spectrometric Coronagraph (LASCO) C2 and C3 fields of view amazed even experienced solar physicists at the SOHO operations center.

    Exclusive Views of Comet 96P/Machholz: You could see it easily with your unaided eye (but don't try!) if only Comet Machholz 1 were not so very close to the Sun. The best, and perhaps the only view of it near perihelion comes from SOHO. As an added bonus, Venus appears in the images, and a CME erupts as the comet passes by.

    SOHO Featured in the: Astronomy Picture of the Day

 
 

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