Space - page 102

Cai Uso Wohler Ha2011 07 27 15h55UT 2_1311792137_med

Sun harbors energy for powerful X-class solar flares

Sunspot 1260 has developed a delta-class magnetic field that harbors energy for powerful X-class solar flares. Such an eruption today would be Earth-directed as the sunspot turns to face our planet.Sunspot 1260 is leading a parade of big sunspots across the solar

July 29, 2011

february eta draconid meteor shower

Trail of crumbs discovered from potentially hazardous comet

A surprise meteor shower spotted in February was likely caused by cosmic "bread crumbs" dropped by an undiscovered comet that could potentially pose a threat to Earth.The tiny meteoroids that streaked through Earth's atmosphere for a few hours on Feb. 4 represent a

July 28, 2011

WISE_Earthtrojan

First Trojan asteroid found locked into Earth's orbit

NASA’s Wide-field Infrared Survey Explorer (WISE) has found the very first asteroid that (more or less) shares an orbit with Earth! Called 2010 TK7, this asteroid is about 300 meters (roughly 1000 feet) across, and is the first in an up-to-now theoretical class of

July 28, 2011

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Solar activity is picking up again

After more than a week of quiet, solar activity is picking up. NASA's Solar Dynamics Observatory is monitoring two big sunspot groups now emerging over the sun's eastern limb. Click on the image to view a 40-hour movie.The leading sunspot group, AR1260, is crackling

July 27, 2011

nasa wallops sounding rocket 110710

7 rockets launched in 7 days

When two small NASA rockets launched into suborbital space to probe the Earth's ionosphere this month, they kicked off a surprisingly busy week for rockets around the world. No less than seven rockets blasted off from the United States, Russia, China and India in as

July 25, 2011

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Fourth moon discovered around Pluto

Five years after Pluto was stripped of its planet status, astronomers have discovered yet another moon in orbit around it, bringing its entourage to four. The tiny body may have been born in the same collision that gave birth to Pluto's other moons.The Hubble Space

July 25, 2011

gone away heavenly bodies_honda

Comets Honda and Elenin fulfill Mayan, Hopi and Christian Prophecies as the Mayan calendar approaches its end on October 28, 2011

Many people have now heard about the upcoming entry to the inner solar system of the comet Elenin (http://elenin.org) and there is a whole range of ideas and speculations about what this might entail. Comets have always been seen as harbingers of auspicious or (more

July 23, 2011

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Kp5 geomagnetic storm in progress!!!

The solar wind is at elevated levels and this may stir up minor activity at very high latitudes.Solar windspeed: 622.5 km/secdensity: 3.8 protons/cm3Planetary K-indexNow: Kp= 5 storm24-hr max: Kp= 5 stormInterplanetary Mag.

July 19, 2011

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Solar tsunami and dark fireworks on the Sun

On June 7, 2011, Earth-orbiting satellites detected a flash of X-rays coming from the western edge of the solar disk. Registering only "M" (for medium) on the Richter scale of solar flares, the blast at first appeared to be a run-of-the-mill eruption- that is, until

July 12, 2011

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Behemoth sunspots evolve

The CME was not squarely Earth-directed and is not traveling at great speed, only minor geomagnetic storming is expected when the cloud arrives. A coronal mass ejection (CME) that billowed away from sunspot 1247 on July 9th could hit Earth's magnetic field on...

July 10, 2011

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Incoming Coronal Mass Ejection (CME)

During the early hours of July 9th, a Coronal Mass Ejection (CME) billowed away from new sunspot 1247. A preliminary analysis of data from NASA's twin STEREO-A and -B spacecraft suggests that the flank of the CME could hit Earth's magnetic field sometime on July

July 09, 2011

100208.radioactive.sunspot

Sun produced a series of strong shortwave radio bursts

On July 7th, the sun produced a series of strong shortwave radio bursts. Click on the dynamic spectrum below to play a 21 MHz sample recorded by amateur radio astronomer Thomas Ashcraft in rural New Mexico. The action begins about 18 seconds into the 2-minute...

July 08, 2011

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Sundiving comet

During the late hours of July 5th, an unnamed icy comet from the outer solar system dove into the sun and disintegrated. Click on the arrow to witness the death plunge recorded by coronagraphs onboard the Solar and Heliospheric Observatory (SOHO):Over the years,

July 06, 2011

latest_sxi

A G1-class (Kp=5) geomagnetic storm is in progress

High-latitude sky watchers should be alert for auroras. A G1-class (Kp=5) geomagnetic storm is in progress.NOAA Space Weather Scale for Geomagnetic StormsSolar windspeed:

July 05, 2011

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Space debris forces ISS astronauts to evacuate the station

The six-member crew of the International Space Station took shelter in two Russian Soyuz spacecraft early Tuesday because of a predicted close approach by an unknown piece of space debris.Safety procedures are put into effect when radar tracking indicates debris

June 28, 2011

asteroid zoom

Newly-discovered asteroid 2011 MD will pass only 12,000 kilometers above Earth's surface

Newly-discovered asteroid 2011 MD will pass only 12,000 kilometers (7,500 miles) above Earth's surface on Monday June 27 at about 1:00 p.m. EDT (1700 UT).

June 27, 2011

solar solar flare storm spot activity

A fast-moving stream of solar wind is buffeting Earth's magnetic field

A fast-moving stream of solar wind is buffeting Earth's magnetic field. The combined effect of this stream plus a CME expected to arrive on June 24th has prompted NOAA forecasters to declare a 30% to 35% chance of geomagnetic storms during the next 24 hours.

June 24, 2011