Friday, December 19, 2014
X-flare on Dec. 20th
Space Weather News for Dec. 20, 2014: http://spaceweather.com
Solar activity is high. A pair of large sunspots is crossing the center of the solar disk, and both are crackling with flares. The strongest so far, an X1.8-class flare on Dec. 20th, caused a strong HF radio blackout over the South Pacific and might have hurled a CME toward Earth.
Visit http://spaceweather.com for more information and updates.
Thursday, June 28, 2012
Stellar Flare Blasts Exoplanet
Working in tandem, NASA's Hubble Space Telescope and Swift satellite have caught a distant star blasting one of its own planets with a powerful stellar flare.
The eruption stripped thousands of tons of material from the planet's atmosphere.
The full story can be found here: http://science.nasa.gov/
Friday, April 01, 2011
Secret Space Plane Flares
SPACE PLANE FLARES: The US Air Force X-37B space plane is circling Earth on a classified mission. Although its orbit is officially unpublished, amateur sky watchers have spotted it and are monitoring its progress. This week, a veteran observer witnessed a spectacular flare from the X-37B, exceeding the brightness of Venus. Details may be found on today's edition of http://spaceweather.com.
Bonus: You can turn your cell phone into a space plane tracker by downloading our field-tested Simple Flybys app: http://simpleflybys.com.
SATURN'S RINGS SURGE IN BRIGHTNESS: This weekend, Saturn will be at opposition--that is, opposite the sun in the skies of Earth. Whenever this happens, Saturn's rings surge in brightness due to backscattering of sunlight. Even a small telescope will show the effect. Visit http://spaceweather.com for observing tips and a sky map.
Tuesday, February 15, 2011
First X-flare of the New Solar Cycle
MAJOR FLARE: Earth-orbiting satellites have detected the strongest solar flare in more than four years. At 0156 UT on Feb. 15th, giant sunspot 1158 unleashed an X2-class eruption. X-flares are the strongest type of x-ray flare, and this is the first such eruption of new Solar Cycle 24. The explosion that produced the flare also sent a solar tsunami rippling through the sun's atmosphere and, more importantly, hurled a coronal mass ejection toward Earth. This raises the possibility of geomagnetic storms in the days ahead. Visit http://spaceweather.com for images and updates.
SPACE WEATHER ALERTS: Would you like a call when geomagnetic storms erupt in your area? Sign up for http://spaceweatherphone.com (voice) or http://spaceweathertext.com (text) for space weather alerts.
Tuesday, February 01, 2011
Watch Out for Solar Sail Flares
NASA's first Earth-orbiting solar sail, NanoSail-D, is circling our planet and attracting the attention of sky watchers. Occasionally, sunlight glinting from the sail's reflective fabric produces a flash of light in the night sky. These "solar sail flares" are expected to grow brighter as NanoSail-D descends in the weeks ahead.
FULL STORY at
http://science.nasa.gov/
Tuesday, May 26, 2009
Space Station Flares
SPACE STATION FLARES: Lately, a growing number of observers are reporting intense "flares" coming from the International Space Station (ISS). During some nighttime flybys, the luminosity of the space station surges 10-fold or more. Some people have witnessed flares of magnitude -8 or twenty-five times brighter than Venus. A movie featured on today's edition of http://spaceweather.com shows what is happening: sunlight glints from the station's recently expanded solar arrays in a shadow-casting flash. Currently, the flares are unpredictable. You watch a flyby not knowing if one will happen or how bright it might be. That's what makes the hunt for "ISS flares" so much fun.
Sky watchers in North America should be alert for flares this week. The ISS is making a series of evening passes over many US and Canadian towns and cities. Flyby times are available from the Simple Satellite Tracker: http://spaceweather.com/flybys
Would you like a phone call when the ISS is about to fly over your hometown? Sign up for Space Weather PHONE: http://spaceweatherphone.com
Monday, December 15, 2008
Solar Flare Surprise
Solar flares are supposed to obliterate everything in their vicinity, yet one of the most powerful flares of the past 30 years has done just the opposite, emitting a beam of pure and unbroken hydrogen atoms. Researchers think this strange event could yield vital clues to the inner workings of solar flares.
FULL STORY at
http://science.nasa.gov/
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