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Zachery Nielson (Zac)
Works at The Apple Post
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Zachery Nielson (Zac)

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Blue Aurorae in Mars’ Sky Visible to the Naked Eye! | NASA
This is an artist interpretation of what aurorae may look like close to magnetic anomalies on Mars. | May 28, 2015: For the first time, an international team of scientists from NASA, the Institute of Planetology and Astrophysics of Grenoble (IPAG), the European Space Agency and Aalto University in Finland, have predicted that colorful, glowing aurorae can be seen by the naked eye on a terrestrial planet other than Earth—Mars.

Visible Martian aurorae seemed possible after the SPICAM imaging instrument on-board the ESA satellite Mars Express spotted aurorae from space in 2005. Those observations were confirmed in March 2015 by the NASA-led MAVEN mission, which completed 1,000 orbits around the red planet on April 6, 2015.

Through laboratory experiments and a physical numerical model developed at NASA and IPAG, the study shows that, on Mars, aurorae also occur in the visible range. The most intense color is deep blue. As on Earth, green and red colors are also present. Several times during a solar cycle, after intense solar eruptions, these lights are bright enough to be seen with the naked eye.

Aurorae occur when charged solar particles reach local magnetic field lines, where they enter the planetary atmosphere and excite its atoms and molecules. As they deactivate, the particles produce light emission. On Earth, aurorae are essentially green or red (excitation of atomic oxygen), but even blue-purple (excitation of ionized molecular nitrogen) can be seen.

At the beginning of Mars’ existence and up until 3.5 billion years ago, the red planet hosted a global magnetic field. Although this global field somehow shut down, local spots of increased magnetic fields, called crustal magnetic anomalies, still remain in Mars' surface. These anomalies are concentrated in the southern hemisphere, where aurorae are predicted to occur.

It is predicted that an astronaut walking on the red soil of the planet could look up to see the southern night sky glow blue, with red and green hues.

Perhaps NASA astronauts who plan to make their way towards the Mars’ surface by the 2030s aboard Orion will be the first to provide first-hand confirmation of the prediction. And to think, Mars’ southern lights could eventually become as much of a draw to aurorae admirers as Earth’s northern lights.

“Our planetary research gives us good insight on physics in the Martian atmosphere—how it evolved, why Mars’ mass is different than Earth’s,” said Guillaume Gronoff, a research scientist at NASA’s Langley Research Center who helped to lead the study. “It helps us to better understand planetary atmosphere emissions, ultimately helping us to discover habitable planets.”

References: 
Prediction of blue, red and green aurorae at Mars by J. Lilensten, D.
Bernard, M. Barthélemy, G. Gronoff, C. Simon Wedlund, A. Opitz,

Planetary and Space Science, May 2015, PII : S0032-0633(15)00130-0, DOI : 10.1016/j.pss.2015.04.015

Credit: NASA/JPL-Caltech/MSSS and CSW/DB

+NASA Langley Research Center 
+NASA Jet Propulsion Laboratory 
+NASA Orion 
+European Space Agency, ESA 

#NASA   #Space   #Mars   #Astronomy   #Aurora #Science
#Atmosphere #Physics #Solar #Magnetic #Human #Exploration
#Astronauts #Orion   #SLS #Rocket #JourneytoMars #Langley #JPL #MAVEN #Research #ESA #MarsExpress #Artist
#Illustration #Visualization
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Galaxy with jets from a supermassive black hole: Fulldome view Fulldome clip showing animation of galaxy with jets from a supermassive black hole. These outflows of plasma are the result of the extraction of energy from a supermassive black hole’s rotation as it consumes the disc of swirling material that surrounds it. These jets have very strong emissions at radio wavelengths.

Credit: ESA/Hubble, L. Calçada (ESO)

+Hubble Space Telescope 
+European Space Agency, ESA 
+NASA Goddard 
+Space Telescope Science Institute 

#NASA #Space #Hubble #Astronomy #Science #Galaxy #BlackHole #Jets #Plasma #Cosmos #Universe #STScI #Artist #Impression #Visualization #Animation #FullDome #Planetarium
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Not sure if great or horrible
 
NewsGIF delivers your daily news entirely via GIFs http://tnw.me/t5LsL1a
Ever wish you had a TL;DR for the news? While I'm not sure the future of CNN, BBC, or Al Jazeera is directly tied to looping images, NewsGIF is having a bit of fun with the format when ...
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Celebrating the best the Internet has to offer
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Quick tutorial for Divi theme users!
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Episode one of my podcast is here!
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Mongolia | International Space Station
Samantha: "Looks like it was still very cold in Mongolia in mid-May!"
Mongolia is a landlocked country in east-central Asia. It is bordered by Russia to the north and China to the south, east and west.

Credit: ESA/NASA, ESA astronaut Samantha Cristoforetti of Italy
Image Date: May 17, 2015

+Samantha Cristoforetti 
+European Space Agency, ESA 

#NASA #ESA #Space #ISS #Earth #Mongolia #Asia #Astronaut #SamanthaCristoforetti #OurOutpostInSpace #Spacecraft #Technology #Flight #Engineer #Expedition42 #Futura42 #Italy #ASI #Europe #Art #Science #Papua #Niugini #International #МонголУлс #MongolUls #MonggolUlus
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Zachery Nielson (Zac) changed his profile photo.

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LG has a kick ass new TV that is practically wallpaper thin. http://j.mp/1KkizHT 
Break out the magnets, we want to cover our walls with ultra thin OLED TVs and LG is trying to make it happen. Just a few days ago in Korea, the company unveiled […]
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Take a moment to think, watch this.
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Have him in circles
230 people
Tonislava Georgieva's profile photo
Vanessa Bachmann's profile photo
Nguyễn Dương's profile photo
Dawn Nielson's profile photo
Joy On Sale's profile photo
Nilesh Kumar Routray's profile photo
James Milnus's profile photo
Cathy McAuley's profile photo
Md. Zunaid Hasan's profile photo
Work
Occupation
CEO SHELBY CO. + Editor The Apple Post
Employment
  • The Apple Post
    Editor, 2015 - present
  • SHELBY CO.
    Head Designer & CEO, 2014 - present
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Utah
Previously
West Valley, Utah - Boise, Idaho - Idaho City, Idaho - Salt Lake City, Utah - Ogden, Utah
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  • Dorius Academy
    2014 - 2014
  • Layton Christian Academy
    2012 - 2013
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Networking
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January 14
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Zac
Great price for a buffet. Food is usually pretty good, but not the best sushi in the world!
Public - a year ago
reviewed a year ago
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