Showing posts with label earth. Show all posts
Showing posts with label earth. Show all posts
Wednesday, September 14, 2016
Spooky Eclipse of the Harvest Moon
Source - Space Weather News for Sept. 15, 2016: http://spaceweather.com
SPOOKY ECLIPSE OF THE HARVEST MOON: According to folklore, this Friday's full Moon is the Harvest Moon. For many observers, the usual luster of the silver orb will be dimmed by a spooky shadow as the Moon experiences a "penumbral lunar eclipse."
Visit http://spaceweather.com for visibility maps and a cool animation.
EARTH'S MAGNETIC FIELD CAUGHT RINGING LIKE A BELL: This week a magnetic observatory in Norway recorded almost pure sinusoidal oscillations in Earth's magnetic field--a phenomenon unlike normal geomagnetic storms. The magnetic "ringing" was accompanied by equally sinusoidal electric currents flowing through the ground. The data and underlying physics are highlighted on today's edition of http://spaceweather.com.
Wednesday, September 07, 2016
Asteroid buzzes Earth, then flies by the Moon
Source - Space Weather News for Sept. 7, 2016: http://spaceweather.com
ASTEROID DOUBLE FLYBY: On Sept. 7th, a newly discovered asteroid about the size of a large grey whale flew over the south pole of Earth only 25,000 miles away. For scale, that's only a few thousand miles above the orbits of typical geosynchronous satellites. After the Earth flyby, the space rock turned and headed in the general direction of the Moon, executing a wider flyby of 179,000 miles on Sept. 8th. Where will this asteroid go next? Visit http://spaceweather.com for answers and photos of today's encounter with Earth.
BRIGHT AURORAS: A broad solar wind stream hit Earth on Sept. 1st, sparking a display of bright auroras around the Arctic Circle that is only now fully subsiding. Did you miss it? Browse our Aurora Photo Gallery for highlights.
Friday, October 09, 2015
Blue Skies on Pluto, Green Skies on Earth
Source - Space Weather News for Oct. 9, 2015: http://spaceweather.com
BLUE SKIES ON PLUTO: Earth isn't the only planet with blue skies. Pluto has them, too. NASA's New Horizons spacecraft has just beamed back the first color images of Pluto's atmosphere, and they look a lot like home. Visit http://spaceweather.com for the full story.
GREEN SKIES ON EARTH: This week, sky watchers around the Arctic Circle have seen some of the most intense auroras of the current solar cycle. Usually, such displays are caused by CMEs. Not this time, though. The reason for the outbreak is explained on today's edition of http://spaceweather.com.
Tuesday, July 23, 2013
Pale Blue Dot: Distant Spacecraft Photograph Earth
Source - NASA Science News for July 23, 2013
Images of Earth taken by two interplanetary spacecraft show our planet and its moon as bright beacons from millions of miles away in space.
The complete article can be found here: http://science.nasa.gov/
Sunday, March 10, 2013
Amplified Greenhouse Effect Shifts North's Growing Seasons
Source - NASA Science News for March 10, 2013
Vegetation growth at Earth's northern latitudes increasingly resembles lusher latitudes to the south, according to a NASA-funded study. "It's like Winnipeg, Manitoba, moving to Minneapolis-Saint Paul in only 30 years," says one of the lead researchers.
The complete article can be found here: http://science.nasa.gov/
Wednesday, February 13, 2013
The UN Braces for Stormy Space Weather
Source - NASA Science News for Feb. 13, 2013
Forecasters say solar maximum is due in 2013. To prepare, the United Nations is taking steps to organize an international response to stormy space weather.
From the article: "Space weather might play a role in Earth’s climate, too. For example, the Maunder minimum, a 70-year period almost devoid of sunspots in the late 17th to early 18th century, coincided with prolonged, very cold winters in the northern hemisphere. Researchers are increasingly convinced that variations in solar activity have regional effects on climate and weather that pay no attention to national boundaries, and thus can only be studied in meaningful detail by international consortia."
The complete article can be found here: http://science.nasa.gov/
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/
Wednesday, December 12, 2012
Big Asteroid Tumbles Harmlessly Past Earth
Source - NASA Science News for Dec. 12, 2012:
Asteroid 4179 Toutatis is tumbling past Earth this week. Astronomers are taking advantage of the flyby to ping the space rock using NASA radars and obtain images of unprecedented clarity.
The complete article can be found here: http://science.nasa.gov/
Thursday, December 06, 2012
Unprecedented New Images of Earth at Night
Source - NASA Science News for Dec. 5, 2012
New images from a NASA-NOAA satellite reveal the Earth at night as never seen before. Highlights include views of superstorm Sandy making landfall in moonlight, photos of Northern Lights over the Arctic, and spectacular snapshots of city lights.
The complete article can be found here: http://science.nasa.gov/
Friday, August 03, 2012
The Summer of 2012--Too Hot to Handle?
Source - NASA Science News for August 3, 2012
Are the heat waves of summer 2012 a sign of climate change, ordinary weather, or some mixture of the two? Earth scientists discuss the possibilities in today's story from Science@NASA.
The full story can be found here: http://science.nasa.gov/science-news/science-at-nasa/2012/03aug_summer2012/
Are the heat waves of summer 2012 a sign of climate change, ordinary weather, or some mixture of the two? Earth scientists discuss the possibilities in today's story from Science@NASA.
The full story can be found here: http://science.nasa.gov/
Thursday, July 12, 2012
Earth-Directed X-flare and CME
Source - Space Weather News for July 12, 2012: http://spaceweather.com
EARTH-DIRECTED X-FLARE: Big sunspot AR1520 erupted on July 12th around 16:53 UT, producing an X-class solar flare and hurling a CME directly toward Earth. Forecasters expect the cloud to arrive on July 14th. Its impact could spark moderate to severe geomagnetic storms, allowing auroras to be seen at lower latitudes than usual. Check http://spaceweather.com for more information and updates.
AURORA ALERTS: Would you like a call when geomagnetic storms are underway? Aurora alerts are available from http://spaceweathertext.com (text) and http://spaceweatherphone.com (voice).
EARTH-DIRECTED X-FLARE: Big sunspot AR1520 erupted on July 12th around 16:53 UT, producing an X-class solar flare and hurling a CME directly toward Earth. Forecasters expect the cloud to arrive on July 14th. Its impact could spark moderate to severe geomagnetic storms, allowing auroras to be seen at lower latitudes than usual. Check http://spaceweather.com for more information and updates.
AURORA ALERTS: Would you like a call when geomagnetic storms are underway? Aurora alerts are available from http://spaceweathertext.com (text) and http://spaceweatherphone.com (voice).
Friday, June 29, 2012
Hidden Portals in Earth's Magnetic Field
Source - NASA Science News for June 29, 2012
A NASA-sponsored researcher has developed a way for spacecraft to hunt down hidden magnetic portals in the vicinity of Earth. These gateways link the magnetic field of our planet to that of the sun, setting the stage for stormy space weather.
The full story can be found here: http://science.nasa.gov/
A companion video is posted below and can also be viewed at: http://www.youtube.com/watch?
A NASA-sponsored researcher has developed a way for spacecraft to hunt down hidden magnetic portals in the vicinity of Earth. These gateways link the magnetic field of our planet to that of the sun, setting the stage for stormy space weather.
The full story can be found here: http://science.nasa.gov/
A companion video is posted below and can also be viewed at: http://www.youtube.com/watch?
Sunday, June 17, 2012
Double CME Hits Earth, Sparks Auroras
Source - Space Weather News for June 17, 2012: http://spaceweather.com
As predicted, a double CME hit Earth's magnetic field on June 16th. The impact strongly compressed Earth's magnetosphere, exposing geosynchronous satellites to solar wind plasma and sparking more than 24 hours of geomagnetic storms. (The storms are still in progress as this alert is being written during the middle hours of June 17th.) In the United States, Northern Lights have descended as far south as Wisconsin, Washington, Minnesota, and the Dakotas. Southern hemisphere observers are also reporting colorful aurora australis. Check http://spaceweather.com for photos and updates.
AURORA ALERTS: Would you like a call when geomagnetic storms are underway? Aurora alerts are available from http://spaceweathertext.com (text) and http://spaceweatherphone.com (voice).
As predicted, a double CME hit Earth's magnetic field on June 16th. The impact strongly compressed Earth's magnetosphere, exposing geosynchronous satellites to solar wind plasma and sparking more than 24 hours of geomagnetic storms. (The storms are still in progress as this alert is being written during the middle hours of June 17th.) In the United States, Northern Lights have descended as far south as Wisconsin, Washington, Minnesota, and the Dakotas. Southern hemisphere observers are also reporting colorful aurora australis. Check http://spaceweather.com for photos and updates.
AURORA ALERTS: Would you like a call when geomagnetic storms are underway? Aurora alerts are available from http://spaceweathertext.com (text) and http://spaceweatherphone.com (voice).
Sunday, June 03, 2012
Lunar Eclipse on Monday, June 4th
Source - Space Weather News for Sunday, June 3rd: http://spaceweather.com
LUNAR ECLIPSE: On June 4th, the full Moon will pass through the shadow of Earth, producing a partial lunar eclipse visible across the Pacific side of our planet. The eclipse zone stretches from east Asia to central parts of North America. In the United States, the event is visible during the hours before sunrise on Monday morning. Check http://spaceweather.com for more information and updates.
SOLAR FLARE ALERTS: Would you like a call when sunspots erupt? Solar flare alerts are available from http://spaceweathertext.com (text) and http://spaceweatherphone.com (voice).
LUNAR ECLIPSE: On June 4th, the full Moon will pass through the shadow of Earth, producing a partial lunar eclipse visible across the Pacific side of our planet. The eclipse zone stretches from east Asia to central parts of North America. In the United States, the event is visible during the hours before sunrise on Monday morning. Check http://spaceweather.com for more information and updates.
SOLAR FLARE ALERTS: Would you like a call when sunspots erupt? Solar flare alerts are available from http://spaceweathertext.com (text) and http://spaceweatherphone.com (voice).
Monday, May 28, 2012
Small Asteroid Buzzes Earth on May 29th
Source - Space Weather News for May 29, 2012: http://spaceweather.com
ASTEROID FLYBY: A small asteroid is flying past Earth today inside the orbit of geosynchronous satellites and only 14,000 km above the surface of our planet. Named "2012 KT42," the 3- to 10-meter wide space rock ranks #6 on the top-20 list of known close-approachers to Earth, which makes it significant despite its small size. More information and images may be found on http://spaceweather.com .
OWN YOUR OWN SPACE ROCK: Authentic meteorites, including meteorite jewelry, are on sale now in the Space Weather Store: http://shopspaceweather.com
ASTEROID FLYBY: A small asteroid is flying past Earth today inside the orbit of geosynchronous satellites and only 14,000 km above the surface of our planet. Named "2012 KT42," the 3- to 10-meter wide space rock ranks #6 on the top-20 list of known close-approachers to Earth, which makes it significant despite its small size. More information and images may be found on http://spaceweather.com .
OWN YOUR OWN SPACE ROCK: Authentic meteorites, including meteorite jewelry, are on sale now in the Space Weather Store: http://shopspaceweather.com
Partial Eclipse of the Strawberry Moon
Source - NASA Science News for May 28, 2012
On Monday, June 4th, the Moon will pass through the shadow of Earth, producing a partial lunar eclipse visible across the Pacific from China to the United States.
The full story can be found here: http://science.nasa.gov/
A companion video is posted below and can also be viewed at: http://www.youtube.com/watch?
On Monday, June 4th, the Moon will pass through the shadow of Earth, producing a partial lunar eclipse visible across the Pacific from China to the United States.
The full story can be found here: http://science.nasa.gov/
A companion video is posted below and can also be viewed at: http://www.youtube.com/watch?
Wednesday, May 16, 2012
A New Count of Potentially Hazardous Asteroids
Source - NASA Science News for May 16, 2012
NASA has just released a new count of asteroids that come close to the orbit of Earth and could survive entry through our planet's atmosphere. The data, gathered by an infrared space telescope named WISE, reveal important new information about the origin and make-up of these potentially hazardous space rocks.
FULL STORY: http://science.nasa.gov/
NASA has just released a new count of asteroids that come close to the orbit of Earth and could survive entry through our planet's atmosphere. The data, gathered by an infrared space telescope named WISE, reveal important new information about the origin and make-up of these potentially hazardous space rocks.
FULL STORY: http://science.nasa.gov/
Thursday, March 22, 2012
Solar Storm Dumps Gigawatts into Earth's Upper Atmosphere
Source - NASA Science News for March 22, 2012
A flurry of solar activity in early March dumped enough heat in Earth's upper atmosphere to power every residence in New York City for two years. The heat has since dissipated, but there's more to come as the solar cycle intensifies.
The full story can be found here: http://science.nasa.gov/
A companion video is posted below and can also be viewed at: http://www.youtube.com/watch?
Sunday, March 11, 2012
Geomagnetic Storms Possible on March 11-12
Source - Space Weather News for March 11, 2012: http://spaceweather.com
INCOMING CMEs: One and perhaps two CMEs are expected to hit Earth's magnetic field today. Of particular interest is a CME launched toward Earth by a powerful M8-class eruption on March 10. Forecasters say the cloud could spark minor to severe geomagnetic storms when it arrives on March 11-12. High-latitude sky watchers should be alert for auroras tonight. Check http://spaceweather.com for updates.
WHAT DOES A SOLAR FLARE SOUND LIKE? Saturday's M8-class flare hit Earth with a burst of strong shortwave radio emissions. Today's edition of Spaceweather.com features an audio recording of the blast captured by an amateur astronomer in New Mexico.
SPACE WEATHER ALERTS: Would you like a call when geomagnetic storms are in progress? Aurora alerts are available from http://spaceweathertext.com (text) and http://spaceweatherphone.com (voice).
INCOMING CMEs: One and perhaps two CMEs are expected to hit Earth's magnetic field today. Of particular interest is a CME launched toward Earth by a powerful M8-class eruption on March 10. Forecasters say the cloud could spark minor to severe geomagnetic storms when it arrives on March 11-12. High-latitude sky watchers should be alert for auroras tonight. Check http://spaceweather.com for updates.
WHAT DOES A SOLAR FLARE SOUND LIKE? Saturday's M8-class flare hit Earth with a burst of strong shortwave radio emissions. Today's edition of Spaceweather.com features an audio recording of the blast captured by an amateur astronomer in New Mexico.
SPACE WEATHER ALERTS: Would you like a call when geomagnetic storms are in progress? Aurora alerts are available from http://spaceweathertext.com (text) and http://spaceweatherphone.com (voice).
Monday, December 05, 2011
Kepler Confirms First Planet in Habitable Zone of Sun-like Star
Source - NASA Science News for Dec. 5, 2011
Kepler-22b -- Comfortably Circling within the Habitable Zone
"This diagram compares our own solar system to Kepler-22, a star system containing the first "habitable zone" planet discovered by NASA's Kepler mission. The habitable zone is the sweet spot around a star where temperatures are right for water to exist in its liquid form. Liquid water is essential for life on Earth.
Kepler-22's star is a bit smaller than our sun, so its habitable zone is slightly closer in. The diagram shows an artist's rendering of the planet comfortably orbiting within the habitable zone, similar to where Earth circles the sun. Kepler-22b has a yearly orbit of 289 days. The planet is the smallest known to orbit in the middle of the habitable zone of a sun-like star. It's about 2.4 times the size of Earth."
Image credit: NASA/Ames/JPL-Caltech
Diagram and descriptive text source: http://www.nasa.gov/mission_pages/kepler/multimedia/images/kepler-22b-diagram.html
In a significant milestone on the road to finding Earth's "twin" elsewhere in the galaxy, NASA's Kepler mission has confirmed its first planet in the habitable zone of a distant sun-like star.
FULL STORY at http://science.nasa.gov/
Kepler-22b -- Comfortably Circling within the Habitable Zone
"This diagram compares our own solar system to Kepler-22, a star system containing the first "habitable zone" planet discovered by NASA's Kepler mission. The habitable zone is the sweet spot around a star where temperatures are right for water to exist in its liquid form. Liquid water is essential for life on Earth.
Kepler-22's star is a bit smaller than our sun, so its habitable zone is slightly closer in. The diagram shows an artist's rendering of the planet comfortably orbiting within the habitable zone, similar to where Earth circles the sun. Kepler-22b has a yearly orbit of 289 days. The planet is the smallest known to orbit in the middle of the habitable zone of a sun-like star. It's about 2.4 times the size of Earth."
Image credit: NASA/Ames/JPL-Caltech
Diagram and descriptive text source: http://www.nasa.gov/mission_pages/kepler/multimedia/images/kepler-22b-diagram.html
Subscribe to:
Posts (Atom)
Posts
