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Solar wind
speed: 371.3 km/sec
density: 3.8 protons/cm3
explanation | more data
Updated: Today at 0609 UT
X-ray Solar Flares
6-hr max: B3
0549 UT May30
24-hr: B3
0549 UT May30
explanation | more data
Updated: Today at: 0600 UT
Daily Sun: 29 May 15
There is only one sunspot on the solar disk, and it is quiet. Solar activity is very low. Credit: SDO/HMI

Sunspot number: 23
What is the sunspot number?
Updated 29 May 2015

Spotless Days
Current Stretch: 0 days
2015 total: 0 days (0%)

2014 total: 1 day (<1%)
2013 total: 0 days (0%)
2012 total: 0 days (0%)
2011 total: 2 days (<1%)
2010 total: 51 days (14%)
2009 total: 260 days (71%)

Updated 29 May 2015


The Radio Sun
10.7 cm flux: 93 sfu
explanation | more data
Updated 29 May 2015

Current Auroral Oval:
Switch to: Europe, USA, New Zealand, Antarctica
Credit: NOAA/Ovation
Planetary K-index
Now: Kp= 1 quiet
24-hr max: Kp= 2
quiet
explanation | more data
Interplanetary Mag. Field
Btotal: 5.7 nT
Bz: 1.6 nT south
explanation | more data
Updated: Today at 0611 UT
Coronal Holes: 29 May 15

There are no large coronal holes on the Earthside of the sun. Credit: SDO/AIA.
Noctilucent Clouds The northern season for NLCs is underway. NASA's AIM spacecraft spotted the first noctilucent clouds over the Arctic Circle on May 19th.
Switch view: Europe, USA, Asia, Polar
Updated at: 05-23-2015 15:55:02
SPACE WEATHER
NOAA Forecasts
Updated at: 2015 May 29 2200 UTC
FLARE
0-24 hr
24-48 hr
CLASS M
01 %
05 %
CLASS X
01 %
01 %
Geomagnetic Storms:
Probabilities for significant disturbances in Earth's magnetic field are given for three activity levels: active, minor storm, severe storm
Updated at: 2015 May 29 2200 UTC
Mid-latitudes
0-24 hr
24-48 hr
ACTIVE
20 %
10 %
MINOR
05 %
01 %
SEVERE
01 %
01 %
High latitudes
0-24 hr
24-48 hr
ACTIVE
15 %
20 %
MINOR
30 %
20 %
SEVERE
25 %
10 %
 
Saturday, May. 30, 2015
What's up in space
 

Come to Tromsø and share Marianne's passion for rural photography: Chasethelighttours.co.uk invites you to experience "Heaven on Earth" with an aurora, fjord, fishing, whale watching, photography or sightseeing tour.

 
Chase the Light Tours

BREATH-TAKING COMET PICTURE: First, take a deep breath. Second, click here. That was a close-up image of Comet 67P/Churyumov-Gerasimenko taken by the European Space Agency's Rosetta spacecraft in Oct. 2014. Just released by the Rosetta science team, the startling photo shows the comet's rugged terrain from a point-blank distance of only 7.9 km. No wonder Philae bounced when it attempted landing! Stay tuned for more images from the Rosetta blog.

SCIENCE, CROWD-FUNDED BY ROMANCE: Using helium balloons, Spaceweather.com and the students of Earth to Sky Calculus are conducting cutting-edge research in astrobiology and cosmic radiation. For instance, on Saturday morning, May 30th, they plan to fly a batch of Antarctic microbes to the stratosphere to see if the extremophiles can survive Mars-like conditions 110,000 feet above Earth's surface. The flight is being funded by a proposal--a wedding proposal.

Earlier this month, Bruce Levine hired Earth to Sky Calculus to "pop the question" at the edge of space:

And.....?

"She said yes!" says Levine.

Levine is a space-buff and a regular reader of spaceweather.com. His fiancee, Cheryl Campo, is a scientist. Both live in Columbia, Maryland. "We met online," says Levine. "She picked up on a geeky reference from Back to the Future in my profile. We've been nerding out together ever since."

In exchange for flying his card, Levine paid $500 to sponsor an Earth to Sky Calculus research balloon flight. His contribution covers the cost of helium and other consumables required to get a research payload off the ground. Thanks, and congratulations, to Bruce and Cheryl!

Readers, would you like to have your proposal, birthday card, favorite picture or business logo flown to the edge of space? Please contact Dr. Tony Phillips to become a sponsor.

Realtime Space Weather Photo Gallery

NOCTILUCENT CLOUDS INTENSIFY: The northern summer season for noctilucent clouds (NLCs) is underway. Earth-orbiting satellites such as AIM and the International Space Station have been photographing the electric-blue clouds for days. On May 28th, sky watchers on Earth saw them, too. Andy Stables sends this picture from Isle of Skye, Scotland.

The fine-structured blue clouds floating above the dark, ordinary storm clouds are the NLCs. "The NLCs were coming through the twilight at 00:25 UT with some really nice ripple structures,"says Stables. They stretched about 15 degrees above the horizon."

NLCs are Earth's highest clouds. Seeded by meteoroids, they float at the edge of space more than 80 km above the planet's surface. The clouds are very cold and filled with tiny ice crystals. When sunbeams hit those crystals, they glow electric-blue.

Noctilucent clouds first appeared in the 19th century after the eruption of super-volcano Krakatoa. At the time, people thought NLCs were caused by the eruption, but long after Krakatoa's ash settled, the clouds remained. In recent years, NLCs have intensified and spread with sightings as far south as Utah and Colorado. This could be a sign of increasing greenhouse gases in Earth's atmosphere.

Observing tips: Look west 30 to 60 minutes after sunset when the Sun has dipped 6o to 16o below the horizon. If you see luminous blue-white tendrils spreading across the sky, you may have spotted a noctilucent cloud. Space Weather alerts: text, voice

Realtime NLC Photo Gallery

RADAR ECHOES FROM THE NOCTILUCENT ZONE: Every summer since the late 1970s, radars probing Earth's upper atmosphere have detected strong echoes from altitudes between 80 km and 90 km. These altitudes comprise the "noctilucent zone," where water vapor crystallizes around meteor smoke to form icy noctilucent clouds (NLCs). The first NLCs of the 2015 northern summer season were spotted by NASA's AIM spacecraft on May 19th. The radar echoes have followed close behind.

Les Dean of the MST Radar Facility in Aberystwyth, Wales, reports: "We detected our first echoes of the summer season on May 26th."

Researchers call them "Polar Mesospheric Summer Echoes" or "PMSEs." They occur over the Arctic during the months of May through August, and over the Antarctic during the months of November through February. These are the same months that NLCs appear.

But do the radar echoes actually come from noctilucent clouds? "The association is controversial," notes Dean. A leading theory holds that the ice particles in noctilucent clouds are electrically charged, and this makes them good reflectors of HF radio waves. However, NLCs are not always visible when the radar echoes are observed and vice versa. So the connection is not clear-cut.

One thing is sure: the northern season for both NLCs and PMSEs has begun. Stay tuned for more echoes from the noctilucent zone.

UPDATE: "What is happening 90 km above Earth's surface?" wonders researcher Rob Stammes at the Polarlightcenter in Lofoten, Norway. For the past two nights, he has detected intense radio reflections using a forward scatter meteor radar. The phenomenon is almost surely linked to the PMSEs and noctilucent clouds reported above.


Realtime Sprite Photo Gallery


Realtime Aurora Photo Gallery


Realtime Comet Photo Gallery


  All Sky Fireball Network

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 May. 29, 2015, the network reported 3 fireballs.
(3 sporadics)

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]

  Near Earth Asteroids
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 May 30, 2015 there were 1584 potentially hazardous asteroids.
Recent & Upcoming Earth-asteroid encounters:
Asteroid
Date(UT)
Miss Distance
Size
2015 KP57
May 28
10.4 LD
44 m
2015 KW120
May 29
1.1 LD
27 m
2015 KH
May 29
14.3 LD
53 m
2015 KQ120
May 31
8.5 LD
19 m
2015 KM57
Jun 3
6.6 LD
37 m
2005 XL80
Jun 4
38.1 LD
1.0 km
2015 KA122
Jun 6
3.3 LD
101 m
2015 KU121
Jun 7
7.5 LD
109 m
2012 XB112
Jun 11
10.1 LD
2 m
2015 KK57
Jun 23
8.3 LD
13 m
2005 VN5
Jul 7
12.6 LD
18 m
2015 HM10
Jul 7
1.1 LD
73 m
1994 AW1
Jul 15
25.3 LD
1.4 km
2011 UW158
Jul 19
6.4 LD
565 m
2013 BQ18
Jul 20
7.9 LD
38 m
1999 JD6
Jul 25
18.8 LD
1.6 km
2005 NZ6
Aug 6
76.5 LD
1.4 km
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.
  Essential web links
NOAA Space Weather Prediction Center
  The official U.S. government space weather bureau
Atmospheric Optics
  The first place to look for information about sundogs, pillars, rainbows and related phenomena.
Solar Dynamics Observatory
  Researchers call it a "Hubble for the sun." SDO is the most advanced solar observatory ever.
STEREO
  3D views of the sun from NASA's Solar and Terrestrial Relations Observatory
Solar and Heliospheric Observatory
  Realtime and archival images of the Sun from SOHO.
Daily Sunspot Summaries
  from the NOAA Space Environment Center
Heliophysics
  the underlying science of space weather
Space Weather Alerts
   
  more links...
 
 
Fine meteorite rings

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