New data from NASA’s Cassini mission, combined with measurements from the two Voyager spacecraft and NASA’s Interstellar Boundary Explorer, or IBEX, suggests that our sun and planets are surrounded by a giant, rounded system of magnetic field from the sun — calling into question the alternate view of the solar magnetic fields trailing behind the sun in the shape of a long comet tail. [...
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New data from NASAs Cassini mission combined with measurements from the two
Dick Craig
Angie Davis
Chelle Okelly
An active region near the sun’s limb blasted out a coronal mass ejection, which was immediately followed by a bright series of post-coronal loops produced as that region's magnetic field reorganized. The bright loops are actually charged particles spinning along magnetic field lines. Images of this event were captured by NASA’s Solar Dynamics Observatory on April 19, 2017, in wavelengths of...
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Gerry Borchert
Nicole Alfonso
Emanuele Visioli
Storms from the sun can affect our power grids, railway systems and underground pipelines through a phenomenon called geomagnetically induced currents, or GICs.

Learn more about what causes GICs and how they can affect us: [ Go.nasa.gov Link ]
Storms from the sun can affect our power grids railway systems and
Ashutosh Kulkarni
Jefferson Rodrigues
Eric Da Halfabee
A dark, elongated filament rose up and broke out from the sun, as seen in this footage captured by NASA’s Solar Dynamics Observatory on April 9-10, 2017. Filaments are cooler clouds of solar material tethered above the sun's surface by magnetic forces. They are notoriously unstable and tend not to last more than a few days before they collapse into the sun or break away into space. This video...
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Zack Agesa
Zack Agesa
Peter Jack
New research on solar storms finds that they not only can cause regions of excessive electrical charge in the upper atmosphere above Earth's poles, they also can do the exact opposite: cause regions that are nearly depleted of electrically charged particles. The finding adds to our knowledge of how solar storms affect Earth and could possibly lead to improved radio communication and navigation...
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New research on solar storms finds that they not only can cause
Lesly Guirand-Schoelcher
Jim Bunte
Ratul Chanda
The sun emitted a trio of mid-level solar flares on April 2-3, 2017. Our Solar Dynamics Observatory, which watches the sun constantly, captured images of the three events.

Read more: [ Go.nasa.gov Link ]

Watch on YouTube: [ Youtu.be Link ]
Brian Keith
Lee Hutapea Hutapea
Ginny Schlais
On Monday, Aug. 21, 2017, a total eclipse will cross the entire United States, coast-to-coast, for the first time since 1918. Weather permitting, the entire continent will have the opportunity to view a partial eclipse as the moon passes in front of the sun, casting a shadow on Earth’s surface.

Check out the full story online ([ Go.nasa.gov Link ] or download the NASA Visualization Explorer...
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Timothy R. Callahan
Corby McIntyre
The Sun
The sun unleashed 3 mid-level flares April 2-3, causing moderate radio blackouts. Learn more: [ Go.nasa.gov Link ]
The sun unleashed 3 midlevel flares April 23 causing moderate radio blackouts Learn more:
Lesley Willis
Anthony Pucci
Jhon Henry Osorio Orozco
Have eclipse questions? American Astronomical Society will be answering questions during today's live stream at [ Aas.org Link ].
Have eclipse questions American Astronomical Society will be answering questions

AAS Eclipse 2017

aas.org
Michael Johnson
Scott Perry Jr.
Wonder Of Science
When NASA’s Magnetospheric Multiscale — or MMS — mission was launched, the scientists knew it would answer questions fundamental to the nature of our universe — and MMS hasn’t disappointed. A new finding, presented in a paper in Nature Communications, provides observational proof of a 50-year-old theory and reshapes the basic understanding of a type of wave in space known as a kinetic Alfvén...
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Marty Lester
Drux David
Jane Miner
Our sun is a chaotic place, simmering with magnetic energy and constantly spewing out particles. Sometimes the sun releases solar flares and coronal mass ejections — huge eruptions of charged particles — which contribute to space weather and can interfere with satellites and telecommunications on Earth. While it has long been hard to predict such events, new research has uncovered a mechanism...
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George Fracassi
Paul Cavanaugh
BOLD IP, PLLC
NASA's Solar Dynamics Observatory watched well-defined magnetic loops gyrating above an active region on the sun on March 23-24, 2017. These loops were traced out in extreme ultraviolet light by charged particles spinning along the sun's magnetic field lines. This footage was captured in wavelengths of extreme ultraviolet light, which is typically invisible to our eyes, but is colorized here...
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Maya Calmin
Ashutosh Kulkarni
Tim Burks
Two Eyes on the Skies Helps NASA Analyze

Two heads are better than one,
and a pair of spacecraft discovers more in the long run,
as NASA’s Van Allen Probes has shown everyone.

Using two identical spacecraft,
with one in the other’s draft,
gives NASA scientists a looking glass
to watch above Earth as energetic particles pass.

The double system watched a geomagnetic storm
sweep...
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Two Eyes on the Skies Helps NASA Analyze
Mihir Nandan
Dan Williams
Larry Wilcox
For 15 days starting on March 7, 2017, NASA’s Solar Dynamics Observatory, or SDO, returned visible light images of a yolk-like spotless sun. This is the longest stretch of spotlessness since the last solar minimum in April 2010, indicating the solar cycle is marching on toward the next minimum, which scientists predict will occur between 2019—2020. [ Go.nasa.gov Link ]
For 15 days starting on March 7 2017 NASAs Solar Dynamics Observatory
Joey Todd
Mohammed Bettayeb
Joshua E Gosnell
NASA is embracing small satellite designs, from tiny CubeSats to micro-satellites. One of the satellites featured here, CuSP, will serve as a space weather station!

[ Youtu.be Link ]
NASA is embracing small satellite designs from tiny CubeSats to microsatellites One

ScienceCasts: NASA Embraces Small Satellites

Visit http://science.nasa.gov/ for more. NASA is embracing small satellite designs, from tiny CubeSats to micro-satellites. These miniature marvels are provi...

YOUTUBE.COM
Petronio Eco Jr.
Hamza Khattak
Beautiful Universe
NASA scientists Nicki Viall, Alex Young, and Yari Collado-Vega spoke to more than 40 television and radio stations on March 20, 2017 about the Spring equinox and the upcoming Total Solar Eclipse in August. To learn more check out [ Eclipse2017.nasa.gov Link ].
NASA Sun Science - with Little SDO 03/20/2017
Petronio Eco Jr.
Geri Rud
Today is an equinox, one of two days a year when night and day are just about equal lengths across the globe. In the Northern Hemisphere, this equinox marks the beginning of astronomical spring.

We’re live at NASA’s Goddard Space Flight Center in Greenbelt, Maryland, talking about the equinox and another celestial event — the total solar eclipse of Aug. 21, 2017. This August, the moon will...
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Linda Schenk
Ajay Saini
Ajay Saini
Want to learn more about today's spring equinox and the total solar eclipse of Aug. 21? Join us here on this page today, March 20, at 1pm ET for a live show, and be ready to ask us questions in the comments of the live video!
Want to learn more about todays spring equinox and the total solar
Petronio Eco Jr.
Mark Demshock
Today, March 20, is the vernal equinox--the first day of astronomical spring in the Northern Hemisphere.

Join us for a live show on the equinox and the upcoming solar eclipse today (March 20) at 1pm ET. We'll be taking questions from viewers, so be ready to put your questions in the comments of the live video!

Learn more: [ Go.nasa.gov Link ]
Today March 20 is the vernal equinoxthe first day of astronomical spring
Hiroshi  Takegami
Sabrina Martinelli
Abiogenesis
The movements of the stars and the planets have almost no impact on life on Earth, but a few times per year, the alignment of celestial bodies has a visible effect. One of these geometric events — the spring equinox — is just around the corner, and another major alignment — a total solar eclipse — will be visible across America on Aug. 21, with a fleet of NASA satellites viewing it from space...
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The movements of the stars and the planets have almost no impact
Eric Da Halfabee
Jefferson Rodrigues
George Delgado