THE DAWN SPACECRAFT READIES FOR ITS ENCOUNTER W’ A ROMAN GODDESS

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Image Credit & Copyright: NASA/ESA Hubble Space Telescope. Below you will find many related links including NASA/JPL live DAWN tracker, DAWN Image galleries and a live Ceres and Vesta tracker.

See that image? That’s the best image we have of the only dwarf planet in the inner solar system but these images are going to look a whole lot more interesting soon enough.

I know the audience is understandably captivated by Rosetta as the mission is literally only one week away from its target comet, the extremely interesting 67P/Churyumov-Gerasimanko or as it’s lovingly nicknamed “Cherry-Gerry.” For more info and links on the Rosetta mission: http://danspace77.com/2014/07/10/esas-incredible-rosetta-spacecraft-nears-its-target/

That being said, let’s not forget about NASA/Orbital Sciences ION powered DAWN mission, which is set to arrive at dwarf planet Ceres in early 2015.

DAWN was launched from Cape Canaveral Air Force Station (CCAFS) Space Launch Complex-17B (SLC-17B) on September 27, 2007 in the nose of a ULA Boeing Delta II rocket set to unlock the mysteries of asteroid 4 Vesta and dwarf planet, former asteroid 1 Ceres. After a gravity assist from Mars (and some great images for the road) on February 17, 2009 it reached Vesta on July 16, 2011 where it went into orbit and gathered incredible amounts of data, giving us a never before seen view of the Roman virgin goddess of home and hearth. It remained in orbit, delivering incredible imagery until September 5, 2012 when DAWN departed and set off for Ceres where it is scheduled to arrive and enter into orbit on February 15, 2015 and open our eyes to one of the current mysteries of the inner solar system. That mission will carry it through late 2015 or early 2016.

NOTE: The DAWN mission once Ceres is reached will become not only the first spacecraft to reach each of the two bodies; it will become the first spacecraft in history to orbit two separate extraterrestrial planetary bodies. Stay tuned because this is going to get good as it seems every new arrival, every new image to include what Rosetta is currently experiencing is a jaw dropping experience. Especially, since it’s recently been discovered that Ceres is an icy world with confirmations of water vapor in its thin atmosphere.

Here’s the post I created earlier in the year to highlight the opposition and conjunction of Vesta & Ceres. It’s got some more info on the two bodies if you’re so inclined: http://danspace77.com/2014/04/06/ceres-vesta-reach-opposition-this-month/

 

NASA/JPL DAWN Main Mission Page: http://dawn.jpl.nasa.gov/

NASA/JPL Where is DAWN Now?: http://dawn.jpl.nasa.gov/mission/live_shots.asp

NASA/JPL DAWN Multimedia (images/video etc.) page: http://dawn.jpl.nasa.gov/multimedia/index.asp

NASA Solar System page on Ceres: http://solarsystem.nasa.gov/planets/profile.cfm?Object=Dwa_Ceres

DAWN on Twitter: https://twitter.com/NASA_Dawn

DAWN on Facebook: http://www.facebook.com/dawn.mission

The Sky Live (Ceres real time tracking & location): http://theskylive.com/ceres-info

The Sky Live (Vesta real time tracking & location): http://theskylive.com/vesta-info

Hubble Space Telescope image of Ceres: http://www.spacetelescope.org/images/opo0527d/

 

NASA Solar System Simulator (interactive): http://space.jpl.nasa.gov/

NASA Eyes on the Solar System (interactive): http://eyes.nasa.gov/download.html

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NGC 253 SCULPTOR GALAXY (ZOOM 2-2)

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Image Credit & Copyright: NASA/ESA Hubble Space Telescope

In the previous post I detailed the major player in the Sculptor Group of Galaxies, NGC 253 “The Sculptor Galaxy” so let’s take one more step inward; this time thanks to the Hubble Space Telescope we get in near the nucleus so close you almost get a flyover effect.  The following information is the same as in the previous post though the idea is to give you a much closer look into this object as you can almost feel the torque of the spiral formation and view the individual gas filaments streaming above the disk and throughout the arms.  It’s going to be a sad day when Hubble closes its eye for the last time.  I know we have the James Webb Space Telescope coming within the next decade but it’s not an optical telescope so we really need to cherish and appreciate Hubble while we have it.

With a name like Sculptor Galaxy you can imagine that it has some relevance besides just a member of the 20-ish members of the group with the same name and in the Sculptor constellation.  If that thought crossed your mind for some reason you would be correct.  NGC 253 lies at or near the heart of the Sculptor Group which places it at about 12 million light years away from our solar system.

We view this galaxy at a steep angle, almost edge-on (positive camber for us race fans) so we can only dream about how beautiful it would look from Spaceship Earth if it were face-on.  None the less it’s still a fascinating object (Or so I hear because it’s a southern hemisphere sight.) that we can learn much about.  Let’s start with, what I like to call; the syrup on this pancake.  Those of you that aren’t as lame as I; know these as vast gas and dust bands that appear to be covering the disk of the galaxy and likely soaked into the arms themselves providing ideal conditions for star formation to take place which there is no shortage of in this object.

The Sculptor Galaxy is also known as a “Starburst Galaxy” which means that within the arms of the galaxies disk, new stars are accreting, compressing, heating and fusing into life at a rapid rate.  The telltale blue hue and pockets of bright blue make this apparent.  It’s believed that the intense star formation was kicked off roughly 30 million years ago when a dwarf galaxy was cannibalized into its mass.

At its core, high energy X-rays and gamma rays lead astronomers to believe it houses a supermassive black hole roughly 5 million times the mass of the Sun.

I think I may turn this post into a (ZOOM) post so be sure to check the next post as we will take an even close look at this beautiful structure in the universe.

 

NAME: NGC 253, Sculptor Galaxy, Silver Dollar Galaxy, Silver Coin Galaxy.

WHAT IS IT?: Nearly edge on spiral galaxy.

HOW FAR AWAY IS IT?: Roughly 12 million light years as we see it.

HOW BIG IS IT?: Roughly 80,000 light years in diameter and 27.5’x7’ arcminutes on the night sky.

WHO DISCOVERED IT & WHEN?: Caroline Herschel in 1783.

APPARENT MAGNITUDE?: 8 or +8.

WHERE IS IT? (General): Constellation Sculptor (The Whale) and brightest member of the Sculptor Group of Galaxies (Sculptor Filament or South Galactic Pole Group or NGC 253 Group).

WHERE IS IT? (Exact RA/DEC J2000): RA 00h 47m 33s / DEC −25° 17′ 18″.

 

Hubblesite News Center page for this image: http://hubblesite.org/newscenter/archive/releases/1998/42/image/a/

Hubblesite page for this object (different image): http://hubblesite.org/gallery/album/galaxy/pr2008035j/

Hubblesite page for this object (different image): http://hubblesite.org/gallery/album/pr2008035b

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NGC253 SCULPTOR GALAXY (ZOOM 1-2)

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Image Credit & Copyright: ESO/La Silla/IDA/Danish 1.5 m/ R. Gendler, U. G. Jørgensen, J. Skottfelt, K. Harpsøe.

In the previous post I detailed dwarf galaxy ESO 540-31 in the Sculptor Group of Galaxies so let’s take some time and keep the ball rolling with the brightest member of that cluster of galaxies; The Sculptor Galaxy.  In fact, this galaxy, at an apparent magnitude of around 8 is within binocular view and one of the brightest galaxies in the night sky.

With a name like Sculptor Galaxy you can imagine that it has some relevance besides just a member of the 20-ish members of the group with the same name and in the Sculptor constellation.  If that thought crossed your mind for some reason you would be correct.  NGC 253 lies at or near the heart of the Sculptor Group which places it at about 12 million light years away from our solar system.

We view this galaxy at a steep angle, almost edge-on (positive camber for us race fans) so we can only dream about how beautiful it would look from Spaceship Earth if it were face-on.  None the less it’s still a fascinating object (Or so I hear because it’s a southern hemisphere sight.) that we can learn much about.  Let’s start with, what I like to call; the syrup on this pancake.  Those of you that aren’t as lame as I; know these as vast gas and dust bands that appear to be covering the disk of the galaxy and likely soaked into the arms themselves providing ideal conditions for star formation to take place which there is no shortage of in this object.

The Sculptor Galaxy is also known as a “Starburst Galaxy” which means that within the arms of the galaxies disk, new stars are accreting, compressing, heating and fusing into life at a rapid rate.  The telltale blue hue and pockets of bright blue make this apparent.  It’s believed that the intense star formation was kicked off roughly 30 million years ago when a dwarf galaxy was cannibalized into its mass.

At its core, high energy X-rays and gamma rays lead astronomers to believe it houses a supermassive black hole roughly 5 million times the mass of the Sun.

I think I may turn this post into a (ZOOM) post so be sure to check the next post as we will take an even close look at this beautiful structure in the universe.

 

NAME: NGC 253, Sculptor Galaxy, Silver Dollar Galaxy, Silver Coin Galaxy.

WHAT IS IT?: Nearly edge on spiral galaxy.

HOW FAR AWAY IS IT?: Roughly 12 million light years as we see it.

HOW BIG IS IT?: Roughly 80,000 light years in diameter and 27.5’x7’ arcminutes on the night sky.

WHO DISCOVERED IT & WHEN?: Caroline Herschel in 1783.

APPARENT MAGNITUDE?: 8 or +8.

WHERE IS IT? (General): Constellation Sculptor (The Whale) and brightest member of the Sculptor Group of Galaxies (Sculptor Filament or South Galactic Pole Group or NGC 253 Group).

WHERE IS IT? (Exact RA/DEC J2000): RA 00h 47m 33s / DEC −25° 17′ 18″.

 

European Southern Observatory (ESO) page for this image: http://www.eso.org/public/images/potw1017a/

ESO La Silla page: http://www.eso.org/public/teles-instr/lasilla/

ESO images of the La Silla Observatory: http://www.eso.org/public/images/archive/category/lasilla/

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HUBBLE VIEWS DWARF GALAXY ESO 540-31 FROM 11 MILLION LIGHT YEARS

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Image Credit & Copyright: NASA/ESA Hubble Space Telescope & Luca Limatola.

Dwarf galaxies are hidden gems of the local universe.  When I say hidden, in this case I actually mean it as these objects are usually just too dim to observe readily.  Except of course, for the Large and Small Magellanic Clouds which if you live in the southern hemisphere you can view any time.  The difference is that the LMC & SMC are relatively close while objects like ESO 540-31 here are a whopping 11 million light years distant in the southern constellation Cetus (The Whale).

It’s a tiny member of the Sculptor group of roughly 20 members.  This group of galaxies is the closest group to our “Local Group” with its core at a current distance of 12.7 million light years as we see it.  Its closest member to the Milky Way is NGC 55 which is only 5 million light years away, just at the border between the two groups.  Although the objects in this group are too faint to be viewed with the naked eye, its objects are pretty spectacular.

NAME: ESO 540-31, UGCA 15 and DDO 6.

WHAT S IT?: Dwarf elliptical galaxy.

HOW FAR AWAY IS IT?: 11 million light years.

HOW BIG IS IT?: Roughly 6800 x 3800 light years in diameter and contains a few hundred million stars.

WHERE IS IT? (General): Constellation Cetus (The whale) and a member of the Scuptor Group of galaxies.  Also referred to as the Sculptor Filament, NGC 253 Group or the South Galactic Pole Group.

ESA Hubble page for this image: http://www.spacetelescope.org/images/potw1336a/

SIMBAD data for this object: http://simbad.u-strasbg.fr/simbad/sim-id?Ident=ESO+540-31

ESA page for this image: http://www.esa.int/spaceinimages/Images/2013/09/ESO_540-31

ESA Science page for this object: http://www.esa.int/Our_Activities/Space_Science/A_flock_of_stars

ESA Hubble Picture of the Week 2013 (Sept 9): http://www.spacetelescope.org/images/potw/archive/year/2013/

Atlas of the Universe: Sculptor Group: http://www.atlasoftheuniverse.com/galgrps/scl.html

Messier SEDS Sculptor Group: http://messier.seds.org/xtra/ngc/sclgr.html

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“THANK YOU ESA” AS ATV 5 PREPARES TO RESUPPLY THE ISS ONE FINAL TIME

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 Image Credit & Copyright: ESA/CNES/Arianespace ATV-5 Mission Poster: CLICK image for larger view and look below for mission information and more links than you will ever need to include a few to stream the launch live.

Tuesday, July 29th at 2344 UTC (1944 EDT) Arianespace will be launching the massive and beautiful Ariane 5 ES Rocket (designated Flight VA219) with the fifth and final Automated Transfer Vehicle (ATV-5), named after Belgian physicist, Georges Lemaitre, to resupply the ISS. Launch will take place from Launch Site ELA-3 at the Arianespace Spaceport in Kourou, French Guiana.

The ISS is a busy place as Progress M-23M (P-55) undocked on July 21 leaving Soyuz-38 (TMA-12M), Soyuz 39 (TMA-13m), Cygnus S.S. Janice Voss and Progress M-24M (P-56) currently at station. Once docked to the Zvezda “Star” service Module (DOS-8) of the ISS it will remain there for roughly six months before being packed with trash and incinerated in Earth’s atmosphere.

This is a bitter sweet moment personally as we will now have one-less spacecraft available to resupply the International Space Station (ISS). What a great and successful mission the ATV had had as it’s always been a much welcomed sight to the orbiting inhabitants off of the ISS. THANK YOU ESA FOR A GREAT MISSION SUCCESSFULLY EXECUTED!

Currently five (5) spacecraft are tasked with resupply; the Russian Progress (and Soyuz capsule for human delivery), SpaceX Dragon, Orbital Sciences Antares, European Space Agency (ESA) Automated Transfer Vehicle (ATV) and Japan Aerospace Exploration Agency (JAXA) H-II Transfer Vehicle (HTV) or “Kounotori” which means “White Stork”.

Interesting to note, ESA’s ATV and Russia’s Progress (and Soyuz) are the only spacecraft with docking ability at the ISS. At this time, all other supply vehicles must be captured with the Canadarm2 and berthed to its respective module.

For cargo return, SpaceX’s Dragon (and Soyuz for human flight) is the only way to return items from the ISS as it’s the only spacecraft with the ability to survive reentry to Earth’s atmosphere. The other four options end their lives packed with waste and incinerated in the heat of reentry.

JAXA’s HTV cargo ship is also down to its last few flights with three of its seven flights remaining with flights scheduled in each of the next three years (2015, 2016 & 2017). With that, we will then be down to only three resupply options for station. There is however, a proposed iteration of the HTV called the HTV-R which would be able to survive reentry and return items from the ISS. If this takes shape it’s likely that the HTV name will continue on at the ISS.

Arianespace Ariane 5 rocket is a 2-stage expendable launch vehicle that comes in two variants (ECA & ES) and carries payloads weighing more than 10 metric tons to geostationary transfer orbit (GTO) and over 20 metric tons into low-Earth orbit (LEO).

Ariane 5 ECA is the heavy-lift workhorse for missions to geostationary transfer orbit (GTO), and usually carries two satellite payloads. The Ariane 5 ES is tailored for low-Earth orbit missions with the Automated Transfer Vehicle (ATV) – a resupply spacecraft for the International Space Station that weighs more than 19,000 kg at liftoff. This Ariane 5 version also is capable of lofting satellites for Europe’s new Galileo space-based navigation system. The primary difference from the Ariane 5 ECA configuration is the use of a storable propellant upper stage, which can perform multiple burns to deploy payloads into the desired orbit.

ARIANE 5 ECA & ES CONFIGURATION EXPLAINED: ARIANE5 ECA & ES = Heavy lift rocket that stands 53m (173.8ft) tall and is 5.4m (17.7ft) in diameter and is equipped with two solid rocket boosters.

PAYLOAD FAIRING = The main payload fairing is a 2-shell fairing that’s 5.4 m. (17.7 ft.) in diameter and 20 m. (65.6 ft.) in length. Roughly 3 minutes and 100 km after liftoff the shells are pyrotechnically jettisoned. Inside the fairing of the ECA configuration is the structure that accommodates two satellites called “Systeme de Lancement Double Ariane 5” or SYLDA 5.

SECOND STAGE (For the ECA configuration) = Also called the Cryogenic Upper Stage or “Etage Superieur Cryotechnique” (ESC-A) is 5.4m (17.7ft) in diameter by 4.7m (15.4ft) in length. It’s powered by a single HM7B engine that burns liquid hydrogen and liquid oxygen (LOX/LH2) creating 14,000lb 6.5 t of thrust. Burn time for the second stage varies depending on the mission but can operate for around 945 seconds. The second stage also houses the Vehicle Equipment Bay (VEB-C) or “The Brain” which controls the entire vehicle autonomously and also transmits flight data back to the ground.

SECOND STAGE (For the ES configuration) = “Etage Propergols Stockables” (EPS) is 3.9 m (12.8 ft) in diameter by 3.35 m (11 ft) in length. It differs from the ECA configuration because it is not cryogenic, meaning that it carries storable propellants. It’s powered by a single Aestus engine that burns monomethylhdrazine & nitrogen tetroxide creating 14,000lb 6.5 t of thrust. The second stage for this configuration can be reignited many times to suit the mission’s needs. The second stage also houses the Vehicle Equipment Bay (VEB-C) or “The Brain” which controls the entire vehicle autonomously and also transmits flight data back to the ground.

SOLID ROCKET BOOSTERS = 2 expendable SRBs known as Etage dAcceleration a Poudre or (EAPs) are attached to the Ariane 5 and they provide about 90% of the thrust at liftoff which equates to about 1200 t of thrust. They each stand 31.6m (103.7ft) tall and are 3m (10ft) in diameter. They are each powered by a single engine that burns solid fuel (Ammonium Perchlorate, Aluminum Powder and Polybutadiene); burn time is 135 seconds.

MAIN CORE STAGE (1st Stage) = The Core Stage, known as Etage Principal Cryotechnique or (EPC) stands 30 m. (98.4 ft.) high and has a diameter of 5.4m (17.7 ft.). It’s powered by a single Vulcan-2 engine which provides 136 t of thrust. It burns liquid hydrogen and liquid oxygen (LOX/LH2) and burns for 540 seconds.

LIVE STREAMING FEEDS:

Live Streaming Launch: http://www.arianespace.tv/

Arianespace Livestream: http://www.livestream.com/arianespace

European Space Agency (ESA) Space In Videos: http://www.esa.int/spaceinvideos/esalive

European Space Agency (ESA) Livestream: http://www.livestream.com/eurospaceagency

CNES website for launch: http://www.cnes.fr/web/CNES-en/10082-follow-ariane-launch-live.php

Continue reading

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ULA DELTA IV POISED FOR LAUNCH TONIGHT (7-28)!

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Photo Credit & Copyright: ULA/Pat Corkery of the GPS IIF-3 launch: CLICK for larger view and see below for information and links.

LAUNCH ALERT!!! (WEATHER & EQUIPMENT PERMITTING) Monday, July 28th at 1843 EDT (2243 UTC) from Space Launch Complex-37 (SLC-37 or Slick-37) at Cape Canaveral Air Force Station (CCAFS) a United Launch Alliance (ULA), Boeing Delta IV rocket flying in its Medium+4,2 configuration will accelerate out of Earth’s atmosphere carrying U.S. Military’s payloads. This will be ULA’s 85th launch overall and 33 for the USAF.

The AFSPC-4 mission will deliver two Geosynchronous Space Situational Awareness Program (GSSAP) satellites to near-geosyn¬chronous orbit and will also carry an Automated Navigation and Guidance Experiment for Local Space (ANGELS) satellite. The twin GSSAP spacecraft will support U.S. Strategic Command space surveillance operations as a dedicated Space Surveillance Network (SSN) sensor. The GSSAP will also support Joint Functional Component Command for Space (JFCC SPACE) tasking to collect space situational awareness data, allowing for more accurate tracking and characterization of man-made orbiting objects. The ANGELS satellite is managed by the Air Force Research Laboratory (AFRL) Space Vehicles Directorate. As part of AFRL’s research in advanced Space Situational Awareness (SSA), ANGELS examines techniques for providing a clearer picture of the environment surrounding our nation’s vital space assets.

The Boeing Delta IV rocket is an expendable 2 stage rocket that is available in a few different configurations; the Heavy, Medium, Medium+4,2 the Medium+5,2 or Medium+5,4. This mission will be flying in the MEDIUM + (4,2) configuration. The entire vehicle stands 207 ft. (63 m) tall and is capable of being launched from two locations; SLC-37 at Cape Canaveral Air Force Station (CCAFS), FL and SLC-6 at Vandenberg Air Force Base (VAFB), CA.

DELTA IV MEDIUM+4,2 CONFIGURATION SUMMARY: Medium = Medium lift capabilities in the Delta IV family. 4 = Payload fairing (PLF) is 2 shell, 4.1 meters (13.4 ft.) in diameter. 2 = 2 Strap-on solid rocket motors (SRM) attached to the 1st stage produced by Alliant Techsystems.

MAIN PAYLOAD FAIRING (PLF): The spacecraft is protected inside the two-shell 13.4 ft (4.1 m) payload fairing until the rocket reaches an altitude high enough where the spacecraft won’t be damaged by air resistance and heating created by the speed of the rocket from that air resistance.

DELTA CRYOGENIC SECOND STAGE (DCSS) (2nd Stage) = 39.5 ft. (12m) long and 13.1 ft. (4.0m) in diameter and is powered by a single Aerojet Rocketdyne RL10B-2 (RL-10) engine that burns cryogenic liquid hydrogen/liquid oxygen that produces 24,750 lb. of thrust.

STRAP-ON SOLID ROCKET MOTORS (SRM’s): The solid rocket motors are 53 ft (16.2 m) in length and 60” inches (152 centimeters) in diameter. These engines help with the initial boost phase of the launch by burning for roughly 90 seconds and are jettisoned 100 seconds into flight.

COMMON BOOSTER CORE (CBC) (1st Stage) = 133.9 ft. (40.8m) long and 16.7 ft. (5.1m) in diameter and is powered by the Aerojet Rocketdyne RS-68A engine system. The engine burns cryogenic liquid hydrogen/liquid oxygen and produces 663,000 lb. of thrust at sea level.
GO DELTA!!! AFSPC-4!!!

Watch Live Streaming (Coverage begins at 1823 EDT): http://www.ulalaunch.com

United Launch Alliance (ULA) Twitter: https://twitter.com/ulalaunch

United Launch Alliance (ULA) Facebook: http://www.facebook.com/ulalaunch

AFSPC-4 mission page: http://www.ulalaunch.com/delta-iv-to-launch-afspc4.aspx

Excellent AFSPC-4 mission booklet that includes all mission details (PDF): http://www.ulalaunch.com/uploads/docs/Mission_Booklets/DIV/div_afspc-4_mob.pdf?bcsi_scan_df193da5ba4c5bc6=VCkWotRZuvvkkSc1sh0nIlMbY/kSAAAAutR22w==&bcsi_scan_filename=div_afspc-4_mob.pdf

Delta IV Family Page: http://www.ulalaunch.com/site/pages/Products_DeltaIV.shtml

Delta IV – 4 Meter Configuration Cutaway & Vehicle Details: http://www.ulalaunch.com/site/docs/products/Cutaways/DeltaIVM4Meter_Cutaway.pdf

Delta IV Users Guide: http://www.ulalaunch.com/site/docs/product_cards/guides/Delta%20IV%20Users%20Guide%20June%202013.pdf

Patrick AFB (45th Space Wing): http://www.patrick.af.mil/

45th Space Wing Twitter: https://twitter.com/45thSpaceWing

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GUIDING LIGHTS

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Image Credit & Copyright: Stian Rekdal. CLICK image for larger view and look below for information and links.

This incredible image comes to us from Stian Rekdal, taken just outside of Aalesund, Norway.

Just as the lighthouse guides and alerts nearby ocean travelers to the shores nearby; so too does the amazing glow of the aurora borealis potentially guide and alert nearby visitors to the Earth, along the shores of our galactic ocean……….

Please check out Mr. Rekdal’s links as you will not be disappointed.

 

Stian Rekdal Photography: http://www.stianrekdal.com/

Facebook: https://www.facebook.com/stianrekdal

Twitter: https://twitter.com/stianrekdal

Flickr: https://www.flickr.com/photos/stianrekdal/

500px: http://500px.com/Plan9

Vimeo: http://vimeo.com/stianrekdal

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