Showing posts with label solar. Show all posts
Showing posts with label solar. Show all posts
Monday, January 30, 2017
A Big Hole in the Sun's Atmosphere faces Earth
Source - Space Weather News for Jan. 30, 2017 - http://spaceweather.com
A BIG HOLE IN THE SUN'S ATMOSPHERE: A large, canyon-shaped hole has opened in the sun's atmosphere, and it is spewing a stream of solar wind toward Earth. Polar geomagnetic storms are likely when the fast-moving stream arrives, probably on Feb 1st. Visit today's edition of Spaceweather.com for more information.
SUNSET SKY SHOW: For the next two nights, watch the southwestern sky at sunset. Mars, Venus and the crescent Moon are converging for a beautiful gathering in the evening twilight. Visit Spaceweather.com for sky maps and photos.
Sunday, February 03, 2013
Strong Solar Radio Burst
Source - Space Weather News for Feb. 3, 2003: http://spaceweather.com
SOLAR RADIO BURST: Solar activity has been low for weeks. However, there was a break in the quiet this weekend when new sunspot AR1667 unleashed a strong burst of shortwave radio static. The emissions were so loud, they overwhelmed the sounds of terrestrial voice transmissions in the loudspeakers of some shortwave radios on Earth. A recording of the outburst is featured on today's edition of http://spaceweather.com
SOLAR FLARE ALERTS: Would you like a call when solar flares are underway? X-flare alerts are available from http://spaceweathertext.com (text) and http://spaceweatherphone.com (voice).
SOLAR RADIO BURST: Solar activity has been low for weeks. However, there was a break in the quiet this weekend when new sunspot AR1667 unleashed a strong burst of shortwave radio static. The emissions were so loud, they overwhelmed the sounds of terrestrial voice transmissions in the loudspeakers of some shortwave radios on Earth. A recording of the outburst is featured on today's edition of http://spaceweather.com
SOLAR FLARE ALERTS: Would you like a call when solar flares are underway? X-flare alerts are available from http://spaceweathertext.com (text) and http://spaceweatherphone.com (voice).
Wednesday, January 09, 2013
Solar Variability and Terrestrial Climate
Source - NASA Science News for Jan. 8, 2013
A new report issued by the National Research Council, "The Effects of Solar Variability on Earth's Climate," lays out some of the surprisingly complex ways that solar activity can make itself felt on our planet.
The complete article can be found here: http://science.nasa.gov/
Sunday, November 13, 2011
A Remarkable Display of Solar Activity
Source - Space Weather News for Nov. 13, 2011: http://spaceweather.com
SOLAR ACTIVITY: The sun is putting on one of its best displays of the new solar cycle--not with sunspots and flares, but rather with towering walls of plasma and filaments of magnetism. One dark filament is stretching more than a million kilometers across the face of the sun, about three times the distance between Earth and the Moon. Visit http://spaceweather.com for pictures and more information about these remarkable structures.
DON'T MISS THE NEXT FLARE: Would you like a call when strong flares are in progress? Realtime solar activity alerts are available from http://spaceweathertext.com (text) and http://spaceweatherphone.com (voice).
SOLAR ACTIVITY: The sun is putting on one of its best displays of the new solar cycle--not with sunspots and flares, but rather with towering walls of plasma and filaments of magnetism. One dark filament is stretching more than a million kilometers across the face of the sun, about three times the distance between Earth and the Moon. Visit http://spaceweather.com for pictures and more information about these remarkable structures.
DON'T MISS THE NEXT FLARE: Would you like a call when strong flares are in progress? Realtime solar activity alerts are available from http://spaceweathertext.com (text) and http://spaceweatherphone.com (voice).
Thursday, August 18, 2011
Spacecraft Sees Solar Storm Engulf Earth
Source - NASA Science News for August 18, 2011
Below is a companion video to the article - Source NASAexplorer on Aug 18, 2011
NASA | Spacecraft Track Solar Storms From Sun To Earth
(Text below is from the original post on Youtube: http://www.youtube.com/watch?v=1kSx7AOwEco)
NASA's STEREO spacecraft and new data processing techniques have succeeded in tracking space weather events from their origin in the Sun's ultrahot corona to impact with the Earth 96 million miles away, resolving a 40-year mystery about the structure of the structures that cause space weather: how the structures that impact the Earth relate to the corresponding structures in the solar corona.
Despite many instruments that monitor the Sun and a fleet of near-earth probes, the connection between near-Earth disturbances and their counterparts on the Sun has been obscure, because CMEs and the solar wind evolve and change during the 96,000,000 mile journey from the Sun to the Earth.
STEREO includes "heliospheric imager" cameras that monitor the sky at large angles from the Sun, but the starfield and galaxy are 1,000 times brighter than the faint rays of sunlight reflected by free-floating electron clouds inside CMEs and the solar wind; this has made direct imaging of these important structures difficult or impossible, and limited understanding of the connection between space storms and the coronal structures that cause them.
Newly released imagery reveals absolute brightness of detailed features in a large geoeffective CME in late 2008, connecting the original magnetized structure in the Sun's corona to the intricate anatomy of an interplanetary storm as it impacted the Earth three days later. At the time the data were collected, in late 2008, STEREO-A was nearly 45 degrees ahead of the Earth in its orbit, affording a very clear view of the Earth-Sun line.
This video is public domain and can be downloaded at: : http://svs.gsfc.nasa.gov/goto?10809
Like our videos? Subscribe to NASA's Goddard Shorts HD podcast: http://svs.gsfc.nasa.gov/vis/iTunes/f0004_index.html
Or find NASA Goddard Space Flight Center on Facebook: http://www.facebook.com/NASA.GSFC
Or find us on Twitter: http://twitter.com/NASAGoddard
For the first time, a spacecraft far from Earth has turned and watched a solar storm engulf our planet. The movie, released today during a NASA press conference, has galvanized solar physicists, who say it could lead to important advances in space weather forecasting.
FULL STORY at
http://science.nasa.gov/
Below is a companion video to the article - Source NASAexplorer on Aug 18, 2011
NASA | Spacecraft Track Solar Storms From Sun To Earth
(Text below is from the original post on Youtube: http://www.youtube.com/watch?v=1kSx7AOwEco)
NASA's STEREO spacecraft and new data processing techniques have succeeded in tracking space weather events from their origin in the Sun's ultrahot corona to impact with the Earth 96 million miles away, resolving a 40-year mystery about the structure of the structures that cause space weather: how the structures that impact the Earth relate to the corresponding structures in the solar corona.
Despite many instruments that monitor the Sun and a fleet of near-earth probes, the connection between near-Earth disturbances and their counterparts on the Sun has been obscure, because CMEs and the solar wind evolve and change during the 96,000,000 mile journey from the Sun to the Earth.
STEREO includes "heliospheric imager" cameras that monitor the sky at large angles from the Sun, but the starfield and galaxy are 1,000 times brighter than the faint rays of sunlight reflected by free-floating electron clouds inside CMEs and the solar wind; this has made direct imaging of these important structures difficult or impossible, and limited understanding of the connection between space storms and the coronal structures that cause them.
Newly released imagery reveals absolute brightness of detailed features in a large geoeffective CME in late 2008, connecting the original magnetized structure in the Sun's corona to the intricate anatomy of an interplanetary storm as it impacted the Earth three days later. At the time the data were collected, in late 2008, STEREO-A was nearly 45 degrees ahead of the Earth in its orbit, affording a very clear view of the Earth-Sun line.
This video is public domain and can be downloaded at: : http://svs.gsfc.nasa.gov/goto?10809
Like our videos? Subscribe to NASA's Goddard Shorts HD podcast: http://svs.gsfc.nasa.gov/vis/iTunes/f0004_index.html
Or find NASA Goddard Space Flight Center on Facebook: http://www.facebook.com/NASA.GSFC
Or find us on Twitter: http://twitter.com/NASAGoddard
Tuesday, May 31, 2011
A Rare Eclipse of the Midnight Sun
Source - NASA Science News for May 31, 2011
A solar eclipse in the middle of the night? Yes, it can happen. Sky watchers in the Arctic will witness such an event on June 1st when the Moon partially eclipses the midnight sun.
FULL STORY at
http://science.nasa.gov/
Monday, March 28, 2011
Solar Radio Storm
Source - Space Weather News for March 28, 2011: http://spaceweather.com
SOLAR RADIO STORM: A profusion of emerging sunspots has kicked off a days-long radio storm on the sun. VHF receivers on Earth are picking up loud bursts that sound like waves crashing on a beach. This ongoing event continues a recent trend of increasing activity as Solar Cycle 24 heats up. Check http://spaceweather.com for audio and images of the instigating sunspots.
OUT-OF-THE-BOX SOLAR TELESCOPE: Spaceweather.com is pleased to offer an affordable solar telescope that allows you to safely observe sunspots with minimal setup or previous experience. Unlike other solar telescopes, this one works at night, too! Visit the Space Weather Store for details:
http://www.shopspaceweather.com/explore-scientific-white-light-solar-observer-system.aspx
SOLAR RADIO STORM: A profusion of emerging sunspots has kicked off a days-long radio storm on the sun. VHF receivers on Earth are picking up loud bursts that sound like waves crashing on a beach. This ongoing event continues a recent trend of increasing activity as Solar Cycle 24 heats up. Check http://spaceweather.com for audio and images of the instigating sunspots.
OUT-OF-THE-BOX SOLAR TELESCOPE: Spaceweather.com is pleased to offer an affordable solar telescope that allows you to safely observe sunspots with minimal setup or previous experience. Unlike other solar telescopes, this one works at night, too! Visit the Space Weather Store for details:
http://www.shopspaceweather.
Sunday, February 06, 2011
First STEREO Images of the Entire Sun including video
Source - NASA Science News for Feb. 6, 2011
On Super Sun-day, NASA's STEREO spacecraft moved into position to photograph the entire sun--front and back. Researchers say this is a transforming moment in solar physics that could lead to big advances in space weather forecasting.
FULL STORY at
http://science.nasa.gov/
Monday, January 24, 2011
Solar Sail Stunner
Source - NASA Science News for Jan. 24, 2011
In a stunning reversal of fortune, NASA's NanoSail-D spacecraft has unfurled a gleaming sheet of space-age fabric 650 km above Earth, becoming the first-ever solar sail to circle our planet.
FULL STORY at
http://science.nasa.gov/
Sunday, January 16, 2011
Are We Alone for 01/17/11 - You've Got Sol!
Are We Alone - You've Got Sol!
It’s the star of our solar system, but much about the Sun is still mysterious. Find out what a new NASA mission to our favorite fireball might discover about its super-hot outer regions.
Also, why the most common stars in the galaxy don’t shine thanks to nuclear energy as our Sun does. And, recreating Sol’s energy source on Earth at the National Ignition Facility.
Plus, an ex-Star Wars animator and photographer on how to film an atomic blast.
Guests:
- Peter Kuran – An animator on Star Wars, now a filmmaker, documentarian of “”http://www.atomcentral.com/trinity.html">Trinity and Beyond,” and author of How To Photograph an Atomic Bomb
- Davy Kirkpatrick – Astronomer, California Institute of Technology, and scientist for NASA’s WISE mission
- Stuart Bale – Physicist at the University of California, Berkeley and Director of the Berkeley Space Sciences Laboratory
- Mike Dunne – Physicist, and Program Director for Fusion Energy at the Lawrence Livermore Laboratory
Permalink: http://radio.seti.org/episodes/You_ve_Got_Sol_
You can listen to this and other episodes at http://radio.seti.org/, and be sure to check out Are We A Blog?, the companion blog to the radio show.
Sunday, September 05, 2010
Solar eruption misses Earth, auroras likely anyway
SOLAR ACTIVITY: On Sept. 4th around 1600 UT, a magnetic filament erupted, hurling a bright coronal mass ejection (CME) off the sun's northwestern limb. Today's edition of http://spaceweather.com features a close-up view of the blast from NASA's Solar Dynamics Observatory. The CME is not expected to hit Earth. Nevertheless, auroras are possible in the nights ahead. A solar wind stream flowing from a coronal hole is heading our way, due to arrive on Sept. 5th or 6th. NOAA forecasters estimate a 50% chance of high-latitude geomagnetic activity when the solar wind hits. With the approach of northern autumn, Arctic nights are getting dark again--dark enough to see the Northern Lights. People in Alaska, Canada and Scandinavia should keep an eye on the night sky this weekend.
SPACE WEATHER ALERTS: Would you like a call when geomagnetic storms erupt at your latitude? Sign up for Space Weather Phone: http://spaceweatherphone.com
SPACE WEATHER ALERTS: Would you like a call when geomagnetic storms erupt at your latitude? Sign up for Space Weather Phone: http://spaceweatherphone.com
Tuesday, April 27, 2010
Massive Eruption, Scorching Rain Observed on the Sun
Source - NASA Science News for April 27, 2010
NASA's new "Hubble for the Sun" has just observed one of the most dramatic eruptions in years. Movies ten times better than HDTV show billions of tons of magnetized plasma blasted into space while debris from the explosion rains back onto the sun's surface.
FULL STORY at
http://science.nasa.gov/
Friday, March 12, 2010
Solar 'Current of Fire' Speeds Up
Source - NASA Science News for March 12, 2010
A massive "current of fire" on the sun has started running at high speed, surprising researchers and challenging some models of the solar cycle.
FULL STORY at
http://science.nasa.gov/
Check out our RSS feed at http://science.nasa.gov/rss.xml
Friday, February 05, 2010
Solar Dynamics Observatory: The 'Variable Sun' Mission
Source - NASA Science News for February 5, 2010
The Solar Dynamics Observatory (SDO), slated for liftoff on Feb. 9th, will make IMAX-quality movies of solar explosions, peer beneath the stellar surface to see the sun's inner dynamo, and--researchers hope--unravel the mysteries of solar variability.
FULL STORY at
http://science.nasa.gov/
Check out our RSS feed at http://science.nasa.gov/rss.xml
Tuesday, December 15, 2009
A Big New Sunspot Emerges
Source - Space Weather News for Dec. 15, 2009: http://spaceweather.com
BIG NEW SUNSPOT: Just yesterday, sunspot 1035 was nearly invisible. Today, it is as wide as seven planet Earths. The fast-growing active region burst into view on Dec. 14th with a magnetic polarity that clearly identifies it as a member of new Solar Cycle 24. If the expansion continues apace, it could soon become the largest sunspot of the year. Check http://spaceweather.com for movies, photos and updates.
SOLAR ACTIVITY ALERTS: Would you like a call or text message the next time the sun unleashes a big solar flare--or when a geomagnetic storm erupts? Sign up for Spaceweather Phone and never miss another big event on the sun: http://spaceweatherphone.com .
BIG NEW SUNSPOT: Just yesterday, sunspot 1035 was nearly invisible. Today, it is as wide as seven planet Earths. The fast-growing active region burst into view on Dec. 14th with a magnetic polarity that clearly identifies it as a member of new Solar Cycle 24. If the expansion continues apace, it could soon become the largest sunspot of the year. Check http://spaceweather.com for movies, photos and updates.
SOLAR ACTIVITY ALERTS: Would you like a call or text message the next time the sun unleashes a big solar flare--or when a geomagnetic storm erupts? Sign up for Spaceweather Phone and never miss another big event on the sun: http://spaceweatherphone.com .
Tuesday, September 22, 2009
Equinox Sunspots
Space Weather News for Sept. 22, 2009: http://spaceweather.com
NEW SUNSPOTS: In a year when the sun has been utterly blank 80% of the time, the sudden emergence of two large sunspots in a single day is a noteworthy event. Today is such a day. NASA satellites and amateur astronomers are monitoring a pair of growing sunspots, both apparently members of long-overdue Solar Cycle 24. The emergence of these active regions is not enough to end the deepest solar minimum in nearly a hundred years, but they do represent a significant uptick in solar activity. Check http://spaceweather.com for images and updates.
SEPT. EQUINOX: Today, Sept. 22nd at 2118 UT (5:18 pm EDT), the sun crosses the celestial equator. This event marks the beginning of autumn in the northern hemisphere and spring in the southern hemisphere. It's also the beginning of aurora season around the poles. Happy equinox!
NEW SUNSPOTS: In a year when the sun has been utterly blank 80% of the time, the sudden emergence of two large sunspots in a single day is a noteworthy event. Today is such a day. NASA satellites and amateur astronomers are monitoring a pair of growing sunspots, both apparently members of long-overdue Solar Cycle 24. The emergence of these active regions is not enough to end the deepest solar minimum in nearly a hundred years, but they do represent a significant uptick in solar activity. Check http://spaceweather.com for images and updates.
SEPT. EQUINOX: Today, Sept. 22nd at 2118 UT (5:18 pm EDT), the sun crosses the celestial equator. This event marks the beginning of autumn in the northern hemisphere and spring in the southern hemisphere. It's also the beginning of aurora season around the poles. Happy equinox!
Wednesday, June 17, 2009
Mystery of the Missing Sunspots, Solved?
Source - NASA Science News for June 17, 2009
Where have all the sunspots gone? Scientists studying a jet stream deep inside the sun may have found the answer.
FULL STORY at
http://science.nasa.gov/
Check out our RSS feed at http://science.nasa.gov/rss.xml
Saturday, April 25, 2009
Sunset Conjunction Alert, and Unexpected Solar Activity
Source - Space Weather News for April 25, 2009: http://spaceweather.com
SUNSET CONJUNCTION: When the sun goes down on Sunday, April 26th, step outside and look west. An exquisitely-slender crescent Moon is lining up with Mercury and the Pleiades star cluster for a three-way conjunction in the sunset sky. Click here for the full story and a sky map: http://spaceweather.com/headlines/y2009/24apr_eveningsky.php
UNEXPECTED SOLAR ACTIVITY: The sun produced an unexpected burst of activity on April 23rd when an enormous prominence rose over the northeastern limb and erupted. A coronal mass ejection (CME) billowed away from the blast site, but the billion-ton cloud is not heading toward Earth. Visit http://spaceweather.com for movies of the event.
SUNSET CONJUNCTION: When the sun goes down on Sunday, April 26th, step outside and look west. An exquisitely-slender crescent Moon is lining up with Mercury and the Pleiades star cluster for a three-way conjunction in the sunset sky. Click here for the full story and a sky map: http://spaceweather.com/
UNEXPECTED SOLAR ACTIVITY: The sun produced an unexpected burst of activity on April 23rd when an enormous prominence rose over the northeastern limb and erupted. A coronal mass ejection (CME) billowed away from the blast site, but the billion-ton cloud is not heading toward Earth. Visit http://spaceweather.com for movies of the event.
Tuesday, April 14, 2009
The Surprising Shape of Solar Storms
Source - NASA Science News for April 14, 2009
For the first time, NASA spacecraft have traced the 3D shape of solar storms known as coronal mass ejections (CMEs). It turns out the most ferocious storms resemble something from a French bakery. Read today's story to find out what:
http://science.nasa.gov/
Check out our RSS feed at http://science.nasa.gov/rss.
Tuesday, April 07, 2009
NASA's Greatest Mission, and Volcanic Cloud Update
Source - Space Weather News for April 7, 2009: http://spaceweather.com
NASA's GREATEST MISSION? The Solar and Heliospheric Observatory (SOHO) has reached the final round of NASA's Mission Madness tournament where it is competing against upstart SPB, the Super Pressure Balloon, for the title "NASA's Greatest Mission." We endorse SOHO. Since the observatory was launched more than 13 years ago, it has revolutionized solar physics and the art of space weather forecasting--and the plucky spacecraft is still going strong. Vote now and help propel a spaceweather favorite to the championship: http://mission-madness.nasa.gov/
VOLCANIC CLOUD UPDATE: Sulfur dioxide emissions from Alaska's Mt. Redoubt volcano are spreading. A doughnut-shaped cloud about 600 miles wide is now swirling through the stratosphere off the coast of California. Sulfur dioxide and associated aerosols have been known to produce sunsets of exceptional beauty. Check spaceweather.com for the latest sulfur dioxide maps to see if you should be looking for volcanic colors this evening: http://spaceweather.com.
NASA's GREATEST MISSION? The Solar and Heliospheric Observatory (SOHO) has reached the final round of NASA's Mission Madness tournament where it is competing against upstart SPB, the Super Pressure Balloon, for the title "NASA's Greatest Mission." We endorse SOHO. Since the observatory was launched more than 13 years ago, it has revolutionized solar physics and the art of space weather forecasting--and the plucky spacecraft is still going strong. Vote now and help propel a spaceweather favorite to the championship: http://mission-madness.nasa.
VOLCANIC CLOUD UPDATE: Sulfur dioxide emissions from Alaska's Mt. Redoubt volcano are spreading. A doughnut-shaped cloud about 600 miles wide is now swirling through the stratosphere off the coast of California. Sulfur dioxide and associated aerosols have been known to produce sunsets of exceptional beauty. Check spaceweather.com for the latest sulfur dioxide maps to see if you should be looking for volcanic colors this evening: http://spaceweather.com.
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