On April 15th there will be a total eclipse of the Moon. Got clouds? No problem. The event will be broadcast live on the web by the Coca-Cola Science Center.
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TOTAL LUNAR ECLIPSE: Mark your calendar. On April 15th, there will be a total eclipse of the Moon visible from Australia, New Zealand, and all of the Americas. The action begins on Tuesday at 2 AM Eastern time. Get the full story and a video from Science@NASA.
SPACE STATION TRANSITS THE MOON: Two nights ago, astrophotographers Pete Lawrence and Ian Sharp stood in Sharp's back garden in Ham UK waiting for a spaceship to pass in front of the Moon. When it happened, their eyes barely registered the event. High-speed cameras, however, recorded a beautiful view of the ISS speeding over the Sea of Tranquillity:
"Thanks to Pete Lawrence for alerting me to this," says Sharp, who took the picture using a 5-inch refractor. "Pete made the 5 mile trip to setup here and we both imaged the event separately and successfully." [Lawrence's photo]
The ISS transiting the Moon sounds like a rare event, but it happens more often than you might suppose. Only one night earlier, on April 8th, Maximilian Teodorescu of Daia (Giurgiu), Romania, photographed a similar flyby. Most transits go unnoticed because they are so brief. The ISS, moving faster than 17,000 mph, completes its trip across the lunar disk in only a fraction of a second. If you would like to catch the ISS in the act, check Calsky for predicted lunar transits over your home town.
Realtime Space Weather Photo Gallery
SOMETHING IN THE OFFING: For the past 24 hours, plumes of hot plasma have been rising and falling over the sun's southeastern limb. April 10th began with this eruption recorded by NASA's Solar Dynamics Observatory:
The surge heralds the approach of a new sunspot. Because we cannot yet discern the complexity of the region's magnetic field, its potency remains unknown. However, the fact that it has been producing C-flares while still partially eclipsed suggests that much stronger flares are possible when the region fully emerges in the days ahead. Stay tuned. Solar flare alerts: text, voice
Realtime Space Weather Photo Gallery
Realtime Mars Photo Gallery
Realtime Comet Photo Gallery
Realtime Aurora 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 Apr. 10, 2014, the network reported 10 fireballs.
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 April 11, 2014 there were 1465 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 |