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Heliophysics Science Division (670) Press Releases & Feature Stories Archive

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NASA's Solar Dynamics Observatory captured this image of the X1.2 class solar flare on May 14, 2013.

Activity Continues On the Sun

05.15.2013
Solar activity continued on May 14, 2013, as the sun emitted a fourth X-class (X1.2) flare from its upper left limb, peaking at 9:48 p.m. EDT.
Four images from NASA's SDO of an X3.2-class flare from late at night on May 13, 2013.

Three X-class Flares in 24 Hours

05.13.2013
The sun emitted a third significant solar flare in under 24 hours, peaking at 9:11 p.m. EDT on May 13, 2013. This flare is classified as an X3.2 flare.
Image of solar flare

Impacts of Strong Solar Flares

05.13.2013
While we need to protect Earth from the most intense forms of space weather, some people worry that a gigantic flare could hurl enough energy to destroy Earth, but this is not actually possible.
Soho,Stereo and SDO captured images of a gigantic eruption on the sun on May 1, 2013.

NASA's Many Eyes On the Sun

05.07.2013
Several missions within NASA’s Heliophysics observatory (Soho,Stereo,SDO) captured images of a gigantic eruption on the sun on May 1, 2013. Working together, such missions provide excellent coverage.
SDO captured on May 3, 2013, at 1:45 pm EDT, just as an M-class solar flare from the same region was subsiding.

Sun Emits Mid-Level Flare

05.03.2013
The sun emitted a mid-level solar flare, peaking at 1:32 pm EDT on May 3, 2013. Solar flares are powerful bursts of radiation.
Images taken by the STEREO (Ahead) spacecraft’s coronagraph.

CMEs Galore

04.26.2013
Coronal mass ejections were popping out from the Sun at a pace of two per day on average (Apr. 18-23, 2013).
Solar Heliospheric Observatory (SOHO) captured this series of four images of a coronal mass ejection (CME) escaping the sun on the morning of April 25, 2013.

The Sun Sends Two CMEs Toward Mercury

04.25.2013
On April 24-25, 2013, the sun erupted with two coronal mass ejections (CMEs) that can affect electronic systems in satellites. Missions Messenger and STEREO-A maybe affected.
photo of sounding rocket being serviced

NASA Mission to Study What Disrupts Radio Waves

04.25.2013
The EVEX (Equatorial Vortex Experiment) sounding rocket help scientists better understand and predict the electrical storms in Earth's upper atmosphere that can interfere with satellite signals.
Image of the optical path of the EUNIS instrument.

NASA's EUNIS Mission: Six Minutes in the Life of the Sun

04.23.2013
The Extreme Ultraviolet Normal-Incidence Spectrograph (EUNIS) experiment was successfully launched at 1:30 p.m. EDT on April 23, 2013. Preliminary data shows that the experiment performed as planned.
Composite of 25 separate SDO images spanning the period of April 16, 2012, to April 15, 2013.

Three Years of SDO Images

04.22.2013
Since 2010, NASA’s Solar Dynamics Observatory has had virtually unbroken coverage of the sun's rise toward solar maximum, the peak of solar activity in its regular 11year cycle.
This image of the CME, shown shooting off the right side of the image, was capture by the joint ESA and NASA Solar Heliospheric Observatory (SOHO).

Three CMEs in 2 Days

04.20.2013
The third coronal mass ejection (CME) in two days erupted off the sun in the direction of Mercury on April 21, 2013, at 12:39 p.m. EDT.
The launch of the EUNIS mission, short for Extreme is scheduled for Apr. 23, 2013, from White Sands, N.M. aboard this Black Brant IX rocket.

NASA's EUNIS Mission: Six Minutes in the Life of the Sun

04.19.2013
The launch of the EUNIS mission, short for Extreme Ultraviolet Normal Incidence Spectrograph, is scheduled for Apr. 23, 2013, from White Sands, N.M.
Workers unload NASA's IRIS spacecraft from a truck at the processing facility at Vandenberg where the spacecraft will be readied for launch aboard an Orbital Sciences Pegasus XL rocket

NASA'S Newest Solar Satellite Arrives at Vandenberg AFB for Launch

04.17.2013
NASA’s Interface Region Imaging Spectrograph (IRIS) satellite arrived at Vandenberg AFB in Ca. on 4/16/13. IRIS help us understanding how heat and energy move through the deepest levels of the corona
IIustration of the giant magnetic bubble that surrounds the earth, called the magnetosphere, and the area area in front of the bow shock, known as the foreshock.

NASA’s Wind Mission Encounters ‘SLAMS’ Waves

04.16.2013
From 1998 to 2002, NASA's Wind spacecraft traveled through the foreshock region in front of Earth 17 times, providing new information, like short large amplitude magnetic structures (SLAMS).
NASA's Solar Dynamics Observatory captured this image of an M6.5 class flare at 3:16 EDT on April 11, 2013.

Spring Fling: Sun Emits a Mid-Level Flare

04.16.2013
UPDATE: A coronal mass ejection (CME), associated with the April 11 solar flare, hit Earth's magnetic field on April 13, 2013 but the impact was weak so only high latitude aurora were visible.
illustration of how high frequency radio waves, such as GPS, travel through a disturbed layer of Earth’s electrically charged atmosphere, the ionosphere, they can be disrupted.

Celebrating NASA's CINDI on Its Fifth Anniversary

04.15.2013
On April 16, 2008, a suite of NASA instruments was launched into space to study a unique region of Earth’s upper atmosphere: the electrically charged region called the ionosphere.
SOHO captured this series of images of a coronal mass ejection (CME) on the morning of April 11, 2013 over the course of 3:48 EDT to 4:36 EDT.

Spring Fling: Sun Emits a Mid-Level Flare

04.11.2013
The M6.5 flare on the morning of April 11, 2013, was also associated with an Earth-directed coronal mass ejection (CME).
One of two CHAMPS sounding rockets launched on Oct. 13,2011 from the Andoya Rocket Range in northern Norway.

NASA Sounding Rocket Observes the Seeds of Noctilucent Clouds

04.03.2013
The Charge and Mass of Meteoric Smoke Particles (CHAMPS) mission collected data on how much meteor smoke exists, size of the particles, the electrical charge, and if these are noctilucent clouds.
Total Solar Irradiance (TSI) data from the SORCE mission, which marked 10 years of data acquisition on March 6, 2013, demonstrates the daily and cyclic variability of the Sun.

NASA's SORCE Satellite Marks a Decade in the Sun

03.28.2013
Solar Radiation and Climate Experiment (SORCE) satellite has been providing data on the sun's irradiance for 10 years.
Image from ENLIL model of CME approaching Earth.

Solar Storm Near Earth Caused by Fast CME

03.17.2013
On March 17, 2013, at 1:28 a.m. EDT, the coronal mass ejection (CME) from March 15 passed by NASA’s Advanced Composition Explorer (ACE) as it approached Earth.
Movie, captured by the STEREO-B spacecraft on March 9-12, shows the comet and its fluttering tail as it moves through space.

STEREO Sees Comet Pan-STARRS

03.14.2013
In early March 2013, Comet PanSTARRS became visible to the naked eye in the night sky in the Northern Hemisphere, appearing with a similar shape and brightness as a star, albeit with a trailing tail.
SOHO captured this image of a coronal mass ejection bursting off the leftside of the image on March 12, 2013.

Sun Spits Out Two CMEs

03.13.2013
The sun recently erupted with two coronal mass ejections (CMEs). One began at 8:36 p.m. EDT on March 12, 2013 and a second CME began at 6:54 a.m. EDT on March 13, 2013
NASA’s SDO shows the moon crossing in front of the sun

NASA’s SDO Observes Earth, Lunar Transits in Same Day 03.11.13

03.11.2013
On March 11, SDO was treated to 2 transits. Earth blocked the sun from 2:15 to 3:45 a.m. EDT. Later, from around 7:30 to 8:45 a.m. EDT, the moon moved in front of the sun for a partial eclipse.
Solar wind flows away from the sun at speeds up to and exceeding 500 km/s (a million mph)

Solar Wind Energy Source Discovered

03.08.2013
Using data from an aging WIND spacecraft, researchers have found signs of an energy source in the solar wind that has caught the attention of fusion researchers.
Scott Wiessinger of NASA/GSFC, created a lightened, blended version of the CME

SDO Image is Runner-Up in Wikimedia Foundation Contest

03.05.2013
Producer Scott Wiessinger of NASA’s Goddard Space Flight Center in Greenbelt, Md., created a lightened, blended version of the CME using SDO’s 304 and 171 angstroms (wavelengths). This blended image earned second place in Wikimedia Commons’ “Picture of the Year 2012” contest.
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  • Last Updated: 05/21/2013