Articles tagged "cme"

double solar eruption october 18 2017 lasco c3

Powerful double solar eruption beyond the east limb

A powerful double solar flare eruption took place beyond the Sun's east limb early October 18, 2017. The responsible region is now rotating into Earth view and will be visible in a couple of days. The eruption was associated with a Type II (estimated velocity 1...

October 18, 2017

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CME headed toward Earth, impact expected around 12:00 UTC on May 26

An eruption near the center of Earth-facing side of the Sun produced a partial HALO CME (coronal mass ejection) during the early UTC hours of May 23, 2017. The CME is weak, but it has an Earth-directed component. Arrival at Earth is expected around 12:00 UTC on May...

May 24, 2017

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Solar storms trigger Earth's natural thermostat

Scientists discovered what triggers the natural thermostat of our planet's upper atmosphere, responsible for cooling the air previously heated by the intense solar activity. The solar flares and coronal mass ejections (CMEs) can cause damage to satellites...

December 17, 2016


Many views of a massive CME - July 23, 2012

On July 23, 2012, a massive cloud of solar material erupted off the sun's right side, zooming out into space. It soon passed one of NASA's Solar Terrestrial Relations Observatory, or STEREO, spacecraft, which clocked the CME as traveling between 2 900 - 3...

September 26, 2014

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CME impact from X1.6 solar flare generated strong G3 geomagnetic storm and bright auroras

The Earth's magnetic field got disturbed in response to the arrival of the September 10 halo CME caused by X1.6 solar flare. Magnetometers around the world recorded a Geomagnetic Sudden Impulse at 15:55 UTC which signaled the arrival of the CME at

September 12, 2014


Earth directed solar flares possible in the coming days

Solar activity was at low levels during last 24 hours, however, that might change today and in the days ahead. Active Region 2036 exhibited rapid growth over the last few days and is now almost directly facing our planet. Earth directed eruption

April 16, 2014


CME impact causes minor increase in geomagnetic activity

A geomagnetic sudden impulse, indicating the arrival of the March 23 CME, was observed at the Hartland magnetometer (23 nT) at 20:09 UTC on March 25. The geomagnetic field is expected to be at unsettled to active levels (below G1-Minor) early on March 26 as CME

March 26, 2014


Astronomers find solar storms behave like supernovae

Researchers at the UCL studying details of Coronal Mass Ejections (CMEs) have noticed that those eruptions have a surprising twin in the depths of space: the tendrils of gas in the Crab Nebula, which lie 6500 light-years away and are millions of

February 21, 2014


Multiple CMEs observed from central region on the Sun

Solar activity was at moderate levels in last 24 hours (12:30 UTC). Region 1974 (S13W05, Fsc/beta-gamma-delta) continued to exhibit growth and separation in the intermediate spots, and was responsible for the majority of the flare activity throughout the

February 12, 2014

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Series of moderate eruptions and CMEs, Region 1967 approaching center of the disk

SWPC reported that solar activity continued at moderate levels today as both Regions 1967 (S13E01, Fkc/beta-gamma-delta) and 1968 (N10E03, Ekc/beta-gamma) produced M-class flare activity. These included an M2.6 at 06:34 UTC from Region 1968, an

February 02, 2014


Unsettled geomagnetic conditions expected as solar activity picks up

From the start of October, Sun erupted 28 M-class and 3 X-class solar flares, sending the material into the space. Solar activity is still raising with major X1.0 flare on October 28, 2013 and four moderate M-class flares. While our geomagnetic field is

October 29, 2013


Sunspot 1865 produced an M1.1 flare - possible Earth-directed CME

In last 24 hours solar activity has been at moderate levels with many C-class flares detected from sunspots 1865, 1861 and from new approaching region behind the east limb. Active Region 1865 produced an M1.1 flare at 09:00 UTC. There are clear dimming

October 15, 2013


Spectacular filament eruption & Earth directed CME - August 6, 2013

A spectacular filament eruption was observed yesterday August 6, 2013 at 02:04 UTC. A strong Coronal Mass Ejection (CME) has been seen following this energetic impulsive eruption and it does seem to have an earth-bound component which should impact the

August 07, 2013


Large solar prominence on the northwest limb

A large prominence lifted off the northwest limb on July 21, 2013 and generated a Coronal Mass Ejection (CME), directed to the north and away from Earth.    STEREO Ahead and STEREO Behind COR2 images show the prominence flaring on July 22, 2013

July 22, 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


Incoming CME to spark geomagnetic storming on July 13, 2013

We saw increased geomagnetic activity for past two days as Kp index reached K=5, G1 geomagnetic storming level, on July 10. A minor CME hit Earth's magnetic field on July 9, 2013 at approximately 20:30 UTC and peaked during the early hours of

July 12, 2013


Weak CME impact and filament channel eruption on the Sun

An interplanetary shock wave hit our planet's geomagnetic field on June 27, 2013 at approximately 14:20 UTC. Geomagnetic Sudden Impulse was registered at 14:40 UTC. The impact was relatively weak and has not caused a geomagnetic storming so far.

June 28, 2013


Moderate solar flare measuring M2.9 erupted from Region 1777

A moderate solar flare registered as M2.9, at the peak time, erupted from Region 1777 on June 21, 2013. The event started at 02:30 and peaked at 03:14 UTC. A Type IV Radio Emission was associated with the event. Type IV emissions occur in association with

June 21, 2013


Farside eruption generated bright Coronal Mass Ejection (CME)

STEREO Ahead COR 2 recorded farside eruption that produced bright Coronal Mass Ejection (CME). A new active region transiting the farside will rotate into Earthside later this week.This CME was directed away from Earth and pose no danger to our

June 16, 2013


Moderate solar flare reaching M5.9 erupted from AR 1762

Moderate M5.9 solar flare erupted from decaying Actve Region 1762 at 22:49 UTC on June 7, 2013. The event started at 22:11 UTC and ended at 23:04 UTC. This eruption hurled Coronal Mass Ejection (CME) into space, but considering the location of eruption, the plasma

June 08, 2013


C9.5 solar flare erupted from Sunspot 1762, geomagnetic activity subsided

Nearly M-class solar flare was released from Active Region 1762 in the southern hemisphere. Strong C9.5 flare erupted at 07:25 UTC on June 3, 2013. The event started at 07:03, peaked at 07:25 UTC and ended at 07:42 UTC. GOES X-Ray flux shows C9.5 solar flare on

June 03, 2013


Geomagnetic storm still in progress (June 2, 2013)

The arrival of an interplanetary shock wave on May 31, 2013 caused geomagnetic storming that reached G2 (Moderate) geomagnetic storm levels on NOAA/SWPC storm scale during June 1, 2013. The solar wind speed remains elevated above 650 km/s. Currently, geomagnetic

June 02, 2013


Moderate G2 geomagnetic storm in progress (June 1, 2013)

G2 (Moderate) geomagnetic storming has been observed as Earth remains under the influence of a slow-moving Coronal Mass Ejection (CME). This event was not associated with a significant M1.0 solar flare from May 31, 2013 and is likely the result of a disappearing

June 01, 2013


M1.0 solar flare erupted from AR 1760

Impressive M1.0 solar flare erupted at 20:00 UTC on May 31, 2013. Event started at 19:52 UTC and ended at 20:06 UTC. The source of eruption was Active Region 1760. This region is small but appears to have a large amount of shear in the central spot. M1.0 solar

May 31, 2013


Geomagnetic storm in progress, subsiding solar radiation storm (May 24, 2013)

The geomagnetic storm associated with the May 22, 2013 solar flare (M5.0) and corresponding Coronal Mass Ejection (CME) is ongoing. G1 (Minor) geomagnetic storm conditions have occurred as a result. According to NOAA/SWPC, continued, low-level

May 24, 2013

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Strong solar flare reaching M5.0 erupted from Region 1745 - CME released

A strong solar flare reaching M5.0 erupted on May 22, 2013 from Beta classified Region 1745 located on the western limb of the Sun. The event started at 12:30, peaked at 13:38 UTC and ended at 14:26. Associated with the event was a Type II and Type

May 22, 2013


Major G2 geomagnetic storm conditions expected as CME sweeps past Earth

NOAA/SWPC reported passage of an interplanetary shock, recorded by ACE spacecraft. The CME-driven shock was first seen at 22:21 UTC on May 19, 2013, a bit later than forecasters had predicted. A Geomagnetic Sudden Impulse was recorded at 23:11 UTC. This

May 20, 2013


G1 (Minor) Geomagnetic Storm in progress - May 18, 2013

G1 (Minor) Geomagnetic Storm conditions are now occurring due to the arrival of the CME from May 15, 2013. During G1 Geomagnetic Storm, weak power grid fluctuations can occur, minor impact on satellite operations is possible, aurora is commonly

May 18, 2013


Third major X-class solar flare in 24 hours - X3.2 on May 14, 2013

Solar activity increased rapidly in the past two days with three M-class and three major X-class solar events. The latest recorded is the strongest flare so far this year, recorded as X3.2 on May 14, 2013 at 01:17 UTC.  This event was associated with Type II and

May 14, 2013


Major eruption - Active region around east limb produced powerful X1.7 solar flare

A new active region behind east limb produced powerful X1.7 solar flare on May 13, 2013 at 02:15 UTC. This event was associated with strong R3 Radio Blackout Alert, Type II Radio Emission and 10 cm Radio Burst.  This was the strongest solar flare of

May 12, 2013


Prominence eruption and CME on May 1, 2013 captured by SOHO, STEREO and SDO spacecrafts

On May 1, 2013, Active Region just around the left edge of the Sun erupted with a huge coronal mass ejection (CME). The video bellow shows combined imagery from NASA’s SDO, SOHO and STEREO heliophysics fleet. Solar Dynamics Observatory (SDO) provided a

May 07, 2013


Intro to space weather vocabulary - video

Heliophysics scientists study energy transformation from one event to the other and which electromagnetic waves create which conditions near Earth. Space weather effects can disrupt satellites in space, so scientists need to understand the system in even more detail.

May 06, 2013

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Geomagnetic storms - basic terms, data, plots and graphs

A coronal mass ejection (CME) that erupted on March 15, 2013, hit Earth's magnetic field at 06:00 UTC on March 17, 2013. The solar wind speed reached 700 km/s and sparked a moderately strong G2 (Kp=6) geomagnetic storm and minor S1 solar radiation

March 18, 2013


Minor geomagnetic activity expected at high latitudes

On March 12, 2013 a solar filament in the sun's northern hemisphere erupted and launched Coronal Mass Ejection (CME). The source of the explosion was active region AR1690. A CME produced by the explosion is traveling north of the Earth line, but part of the CME

March 15, 2013


Fiery looping rain on the Sun

Eruptive events on the sun can be wildly different. Some come just with a solar flare, some with an additional ejection of solar material called a coronal mass ejection (CME), and some with complex moving structures in association with changes in magnetic field lines

February 20, 2013

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Fast-growing Sunspot 1678 poses threat for M-class and X-class solar flares

Sun erupted slow-moving Coronal Mass Ejection (CME) on February 19, 2013. Goddard Space Flight Center reported that the bulk of the plasma cloud was directed to the north of Earth. Still, we can expect a glancing blow around February 22, 2013. Minor to moderate

February 20, 2013


Sunspot 1675 generated impulsive M1.9 solar flare

An impulsive solar flare measuring M1.9 erupted from Region 1675 on February 17, 2013. The event started at 15:45, peaked at 15:50 UTC and ended at 15:52 UTC. A 10cm Radio Burst was recorded from 15:47 - 15:51 UTC.Space Weather Message Code: SUM10RSerial Number:

February 17, 2013


Sunspot 1667 generated strong C8.7 solar flare and possible Earth-directed CME

A solar flare registered as C8.7 was detected at 00:21 UTC on February 6, 2013. The source of the flare was decaying Active Region 1667. According to images from NASA's STEREO-B spacecraft, the associated CME appears to be heading in the Earth direction, with expected

February 06, 2013


First sightings of how a Coronal Mass Ejection (CME) forms

On July 18, 2012, a fairly small explosion of light burst off the lower right limb of the sun. Such flares often come with an associated eruption of solar material, known as a coronal mass ejection or CME - but this one did not.Something interesting did happen,

February 02, 2013


Ring-shaped prominence and Earth directed CME erupts from Sun - January 31, 2013

An Earth-directed Coronal Mass Ejection (CME) on January 31, 2013 (07:09 UTC) was accompanied by a large prominence eruption best visible in light with a wavelength of 304 angstroms. NASA's Solar Dynamics Observatory captured this footage from 10 p.m. EST (03:00 UTC)

January 31, 2013