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MINOR STORM WARNING, CANCELLED: A CME expected
to sideswipe Earth's magnetic field on August 2nd has not arrived. The tardy cloud is either off target or moving more slowly than forecasters thought, or both. The chance of a geomagnetic storm this weekend is waning. Aurora
alerts: text, voice
AMAZING NEW PHOTO OF THE ROSETTA COMET: This
weekend the ESA released a new image of Comet 67P/Churyumov-Gerasimenko as seen from the Rosetta probe only 1000 km away. It shows the rough surface of the comet's double nucleus in amazing detail:
The photo was taken on Aug. 1st at 02:48 UTC by Rosetta's OSIRIS Narrow Angle Camera. The dark spot near image-center is an
artifact from the onboard CCD.
This new view heightens anticipation for August 6th when Rosetta reaches the comet and goes into orbit around it. Then we will see the strange double-core from point-blank range, and researchers can start
to pick touchdown sites for Philae, a lander that will descend to the comet's surface in November.
Only 3 days to rendezvous! Follow the action @ESA_Rosetta.
Realtime Comet Photo Gallery
PLANETS CROSSING AT NOON (UPDATED): This weekend,
Jupiter and Mercury are in conjunction. Don't bother looking because the meeting takes place in the noontime sky. What human eyes cannot see, however, spacecraft can. Using an opaque disk to block the glare of the sun, the Solar and Heliospheric Observatory
(SOHO) is monitoring the encounter:
At closest approach on August 2nd, the two bright planets were less than 1o apart. If such an alignment occured at night, it would surely be headline news. At noon, its just spaceweather news. Join SOHO
for a ringside seat.
Realtime Space Weather Photo Gallery
Realtime Meteor Photo Gallery
Aurora Photo Gallery
Realtime NLC Photo Gallery
Every night, a network of NASA
all-sky cameras scans the skies above the United States for meteoritic fireballs. Automated software maintained by NASA's Meteoroid Environment Office calculates their orbits, velocity, penetration depth in Earth's atmosphere and many other characteristics.
Daily results are presented here on Spaceweather.com.
On Aug. 2, 2014, the network reported 25 fireballs.
(13 sporadics, 5 Perseids, 3 Southern delta
Aquariids, 3 alpha Capricornids, 1 August Lyncid)
In this diagram of the inner solar system, all of the fireball orbits intersect at a single point--Earth. The orbits are color-coded by
velocity, from slow (red) to fast (blue). [Larger image] [movies]
Potentially Hazardous Asteroids (PHAs
) are space rocks larger than approximately 100m that can come closer to Earth than 0.05 AU. None of the
known PHAs is on a collision course with our planet, although astronomers are finding new ones
all the time.
On August 3, 2014 there were 1497 potentially hazardous asteroids.
Notes: LD means "Lunar Distance." 1 LD = 384,401 km, the distance between Earth and the Moon. 1 LD also equals 0.00256 AU. MAG is the visual
magnitude of the asteroid on the date of closest approach.
| ||The official U.S. government space weather bureau |
| ||The first place to look for information about sundogs, pillars, rainbows and related phenomena. |
| ||Researchers call it a "Hubble for the sun." SDO is the most advanced solar observatory ever. |
| ||3D views of the sun from NASA's Solar and Terrestrial Relations Observatory |
| ||Realtime and archival images of the Sun from SOHO. |
| ||from the NOAA Space Environment Center |
| ||the underlying science of space weather |