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Pierre Markuse
Lives in Hamm, Germany
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Pierre Markuse

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Earth from Space: Shanghai at Night

In this image you can see Shanghai, China, at night from space, taken by NASA astronaut Scott Kelly (https://goo.gl/Ub9jKX) from aboard the International Space Station (ISS). Shanghai (https://goo.gl/zrIVb) is the largest Chinese city by population (more than 24 million). The river you can see flowing through the city is the Huangpu River (https://goo.gl/I57NQA), reaching the Yangtze River (https://goo.gl/qCzUXR) in the upper part of the image.

The area on Google maps:
https://goo.gl/X3Im7b

Other cities at night:

New York City
https://plus.google.com/+PierreMarkuse/posts/ZjCjNUWMJQa

Washington, D.C.
https://plus.google.com/+PierreMarkuse/posts/9cPzbdEtDex

Calgary
https://plus.google.com/+PierreMarkuse/posts/GkrQTCvh265

Year in Space

Scott Kelly is currently on a one-year mission in space, joined by Russian cosmonaut Mikhail Kornienko (https://goo.gl/rGe08R). By extending the mission time from the usual six months to one year the researchers hope to better understand how the human body reacts and adapts to long-duration spaceflight. More on that here:
https://www.nasa.gov/content/a-year-in-space   

Scott Kelly frequently posts pictures from space on his Twitter, follow him here: https://twitter.com/StationCDRKelly

Image credit: Shanghai from space NASA/Scott Kelly https://goo.gl/glqPzj / Edited by +Pierre Markuse 

#space #shanghai   #china   #上海市   #yearinspace #iss #earth #internationalspacestation #scottkelly #photography   #nightphotography  
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👍
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Pierre Markuse

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Antarctic ice safety band at risk

Antarctica is surrounded by huge ice shelves (https://goo.gl/Avsgm0). New research, which includes using data from satellites such as ESA’s heritage Envisat, has revealed that there is a critical point where these shelves act as a safety band, holding back the ice that flows towards the sea. If lost, it could be the point of no return. Over the past 20 years,* many of Antarctica’s ice shelves have thinned and in some cases even disappeared* as giant icebergs calve from the fronts. These floating ice shelves can be enormous. For example, the largest, the Ross Ice Shelf (https://goo.gl/5W69gV), is about the size of Spain and towers hundreds of meters above the waterline. Dr Johannes Fürst, from the University of Erlangen-Nuremberg’s Institute of Geography explained: “Once ice loss through the calving of icebergs goes beyond the passive shelf ice and cuts into the safety band, ice flow towards the ocean will accelerate, which might well entail an elevated contribution to sea-level rise for decades and centuries to come.”

Read the full story here:
http://www.esa.int/Our_Activities/Observing_the_Earth/Antarctic_ice_safety_band_at_risk

More information about the rising sea level here:
http://www.nasa.gov/goddard/risingseas
https://en.wikipedia.org/wiki/Sea_level_rise
https://plus.google.com/+PierreMarkuse/posts/5vnHqZi7peC

Where to start when looking for information on climate change?

Check out NASA's Global Climate Change Vital Signs of the Planet website with lots of information on global climate change:
http://climate.nasa.gov/

Image credit: Wilkins Ice Shelf break-up with an area of about 160 km² breaking off. The animation is comprised of images acquired by Envisat’s Advanced Synthetic Aperture Radar (ASAR) between 30 May and 9 June 2008. This is the first ever-documented episode to occur in winter. ESA http://goo.gl/r94gzw

#science #antarctica #envisat   #asar   #iceshelf   #iceshelves   #climatechange   #globalwarming   #sealevelrise   #iceloss   #antarcticicesheet  
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Ahh were all melting!
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Pierre Markuse

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Planetary Nebula Hen 2-437

In this image taken by the Hubble Space Telescope you can see the planetary nebula Hen 2-437. It is located in the constellation of Vulpecula (The Fox, https://goo.gl/uwv44t), about 3.200 light-years away from Earth. There are roughly 3.000 planetary nebulae known within the Milky Way Galaxy,

It is a bipolar nebula (https://goo.gl/2WuzMd), you can see two symmetrical lobes made up of material ejected by the dying star and pushed outwards by stellar winds (https://goo.gl/Z9Sotn).

Hen 2-437 was first identified in 1946 by the German-American astronomer Rudolph Minkowski (https://goo.gl/zu6kOB).

More information here:
https://www.spacetelescope.org/images/potw1606a/

What is a planetary nebula?

A planetary nebula is an emission nebula (https://goo.gl/QtI28t), it is basically a shell of glowing ionized gas ejected from old red giant stars and driven by the ultraviolet radiation of the emerging young and hot white dwarf (https://goo.gl/HGYVfx). They are short-lived objects, lasting a few tens of thousands of years until the white dwarf has cooled down so much that its not putting out enough ultraviolet radiation anymore and the gas no longer gets ionized. More here:
https://en.wikipedia.org/wiki/Planetary_nebula
https://en.wikipedia.org/wiki/Red_giant
https://plus.google.com/+PierreMarkuse/posts/diXGtuEkAFE

Videos explaining planetary nebulae:
https://youtu.be/pQ4-m1vtTmE
https://youtu.be/4AT9ct-2-Rc

Image credit: Hen 2-437 ESA/Hubble & NASA Acknowledgement: Judy Schmidt (Geckzilla) https://goo.gl/NfOLj6 CC BY 3.0 http://goo.gl/7uTh

My Astronomy/Astrophysics collection recently surpassed 85,000 followers, I would have never expected that much interest, thanks to all of you! If you haven't already, maybe also try my Space/Space Technology collection here https://goo.gl/5KP0wx , or circle me +Pierre Markuse to get all of my posts which usually are science-related.

#science   #astronomy   #hen2437   #planetarynebula   #hubble   #space   #bipolarnebula   #whitedwarf  
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It's fantastic! Phyllis Mangum 
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Pierre Markuse

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Earth from Space: Moonglint at its finest

One of the best moonglint images I've seen so far. Elba and the Mediterranean at night, with the reflection of the moonlight on the sea surface, taken on October 17, 2013 from aboard the International Space Station (ISS) by a member of the Expedition 37 (https://goo.gl/MqU4bf) crew.

Take a close look, at first it may seem like cloud cover, but it is in fact the reflection of the moonlight on the sea surface.

Read more on it here:
http://earthobservatory.nasa.gov/IOTD/view.php?id=87468

The area on Google maps:
https://goo.gl/oPQdpS

Image credit: Astronaut photograph ISS037-E-15305 ISS Crew Earth Observations Facility and the Earth Science and Remote Sensing Unit, Johnson Space Center http://goo.gl/HR317L

#science   #earth #moonglint #elba   #mediterranean #space #spacetechnology   #iss #photography #nightphotography  
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Is this real ???
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Pierre Markuse

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Super Bowl 50 - Satellite images

Super Bowl 50, Carolina Panthers vs Denver Broncos, is taking place in the home of the San Francisco 49ers, the Levi's Stadium (https://goo.gl/Ga9wJL), today. NASA published some nice images of the locations involved, taken by the Landsat 7 satellite.

Image [1] is showing the San Francisco Bay Area, the game will take place in the Levi's Stadium in Santa Clara.

Image [2] is showing Charlotte in North Carolina, home of the Carolina Panthers (https://goo.gl/5yIDcG).

Image [3] is showing Denver, home of the Denver Broncos (https://goo.gl/8n52o9).

More on the Landsat 7 satellite:
http://landsat.usgs.gov/
https://en.wikipedia.org/wiki/Landsat_7

Image credit: [1-3] NASA/GSFC/Landsat 7 Bigger images can be found here: https://goo.gl/39y94u https://goo.gl/jx5MFy https://goo.gl/xeK738

#science   #earth #landsat #landsat7   #superbowl50   #superbowl2016   #sanfrancisco   #charlotte #denver #carolinapanthers   #denverbroncos   #space #spacetechnology  
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Near #MountainView duh
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Pierre Markuse

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Earth from Space: San Francisco and parts of the Bay Area

In this image you can see parts of San Francisco and the San Francisco Bay Area from space, taken by NASA astronaut Scott Kelly (https://goo.gl/Ub9jKX) from aboard the International Space Station (ISS). 

Super Bowl 50, Carolina Panthers vs Denver Broncos, is taking place in the home of the San Francisco 49ers, the Levi's Stadium (https://goo.gl/Ga9wJL), which actually can't be seen in this image because it is further down south in Santa Clara. For a wider view of the area including Santa Clara click here:
https://plus.google.com/+PierreMarkuse/posts/fCxm5pwWnsq

Year in Space

Scott Kelly is currently on a one-year mission in space, joined by Russian cosmonaut Mikhail Kornienko (https://goo.gl/rGe08R). By extending the mission time from the usual six months to one year the researchers hope to better understand how the human body reacts and adapts to long-duration spaceflight. More on that here:
https://www.nasa.gov/content/a-year-in-space   

Scott Kelly frequently posts pictures from space on his Twitter, follow him here: https://twitter.com/StationCDRKelly

Image credit: San Francisco from space NASA/Scott Kelly https://goo.gl/3pxyLe / Edited by +Pierre Markuse 

#space #sanfrancisco   #superbowl50   #superbowl2016 #yearinspace #iss #earth #internationalspacestation #scottkelly #photography  
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Molto bella la baia di San Francesco. 
 ·  Translate
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Pierre Markuse

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Earth from Space: San Francisco Bay Area at Night

In this image you can see the San Francisco Bay area at night from space, taken by NASA astronaut Scott Kelly (https://goo.gl/Ub9jKX) from aboard the International Space Station (ISS). Oakland and Alameda looking really bright in this one.

The area at daytime:
https://plus.google.com/+PierreMarkuse/posts/3hoya9pEcoy

Other cities at night:

New York City
https://plus.google.com/+PierreMarkuse/posts/ZjCjNUWMJQa

Washington, D.C.
https://plus.google.com/+PierreMarkuse/posts/9cPzbdEtDex

Calgary
https://plus.google.com/+PierreMarkuse/posts/GkrQTCvh265

Year in Space

Scott Kelly is currently on a one-year mission in space, joined by Russian cosmonaut Mikhail Kornienko (https://goo.gl/rGe08R). By extending the mission time from the usual six months to one year the researchers hope to better understand how the human body reacts and adapts to long-duration spaceflight. More on that here:
https://www.nasa.gov/content/a-year-in-space   

Scott Kelly frequently posts pictures from space on his Twitter, follow him here: https://twitter.com/StationCDRKelly

Image credit: San Francisco Bay Area from space NASA/Scott Kelly https://goo.gl/qgho1f / Edited by +Pierre Markuse 

#space #sanfrancisco #sanfranciscobay #goldengate   #yearinspace #iss #earth #internationalspacestation #scottkelly #photography   #nightphotography  
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Wander full
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Pierre Markuse

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Earth-like Planets Have Earth-like Interiors

Every school kid learns the basic structure of the Earth: a thin outer crust, a thick mantle, and a Mars-sized core. But is this structure universal? Will rocky exoplanets (https://goo.gl/Xn4wRj) orbiting other stars have the same three layers? New research suggests that the answer is yes - they will have interiors very similar to Earth.To reach this conclusion lead author Li Zeng and his co-authors applied a computer model known as the Preliminary Reference Earth Model (PREM), which is the standard model for Earth's interior. They adjusted it to accommodate different masses and compositions, and applied it to six known rocky exoplanets with well-measured masses and physical sizes. They found that the other planets, despite their differences from Earth, all should have a nickel/iron core containing about 30 percent of the planet's mass. In comparison, about a third of the Earth's mass is in its core (https://goo.gl/CX93R6). The remainder of each planet would be mantle (https://goo.gl/0nRPC4) and crust (https://goo.gl/VTv64d), just as with Earth.

Full story here:
https://www.cfa.harvard.edu/news/2016-03

Read more on the interior structure of Earth here:
https://en.wikipedia.org/wiki/Structure_of_the_Earth

Image credit: This artist's illustration compares the interior structures of Earth (left) with the exoplanet Kepler-93b (right), which is one and a half times the size of Earth and 4 times as massive. New research finds that rocky worlds share similar structures, with a core containing about a third of the planet's mass, surrounded by a mantle and topped by a thin crust. M. Weiss/CfA 

#science #astrophysics #exoplanet   #exoplanets  #earth #prem   #geology   #core   #mantle   #crust   #kepler93b
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And you know this info how?? 
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Pierre Markuse

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Ices and Shadows

In this image taken by the Cassini spacecraft's wide-angle camera on November 23, 2015 you can see Saturn's moon Tethys.  It appears to float between two sets of rings, but it's just a trick of geometry. The rings, which are seen nearly edge-on, are the dark bands above Tethys, while their curving shadows paint the planet at the bottom of the image.

The view was obtained at a distance of approximately 40,000 miles (65,000 kilometers) from Tethys. Image scale is 2.4 miles (4 kilometers) per pixel.

More information here:
http://photojournal.jpl.nasa.gov/catalog/PIA18355

Tethys

Tethys has a diameter of 1,062 kilometers (660 miles) and is orbiting Saturn every 1.9 Earth days at a distance of 294,619 km (183,068 miles). Tethys has as a surface composed mostly of water ice, much like Saturn's rings. It was discovered in 1684 by Giovanni Domenico Cassini. More information here:
https://en.wikipedia.org/wiki/Tethys_(moon)

More on the Cassini spacecraft:
https://www.nasa.gov/mission_pages/cassini/main/index.html
https://en.wikipedia.org/wiki/Cassini%E2%80%93Huygens

Image credit: PIA18355 NASA/JPL-Caltech/Space Science Institute http://goo.gl/WvbCpI

#science #cassini  #tethys   #saturn   #space   #spaceexploration   #solarsystem   #ringsystem   #spacetechnology  
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Nice
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Pierre Markuse

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Earth from Space: Levi's Stadium, Santa Clara

In this image you can see the Levi's Stadium in Santa Clara from space, taken by NASA astronaut Scott Kelly (https://goo.gl/Ub9jKX) from aboard the International Space Station (ISS). 

Scott Kelly said: "Got to see the Super Bowl in person after all! But at 17,500MPH, it didn't last long."

Super Bowl 50, Carolina Panthers vs Denver Broncos, is taking place in the home of the San Francisco 49ers, the Levi's Stadium (https://goo.gl/Ga9wJL) in Santa Clara.

Year in Space

Scott Kelly is currently on a one-year mission in space, joined by Russian cosmonaut Mikhail Kornienko (https://goo.gl/rGe08R). By extending the mission time from the usual six months to one year the researchers hope to better understand how the human body reacts and adapts to long-duration spaceflight. More on that here:
https://www.nasa.gov/content/a-year-in-space   

Scott Kelly frequently posts pictures from space on his Twitter, follow him here: https://twitter.com/StationCDRKelly

Image credit: Levi's Stadium from space NASA/Scott Kelly https://goo.gl/3khydh / Edited by +Pierre Markuse 

#space #santaclara #levisstadium    #superbowl50   #superbowl2016 #yearinspace #iss #earth #internationalspacestation #scottkelly #photography  
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Super match. 
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Pierre Markuse

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Solar prominences

In this image taken by +Paul Stewart on January 21st, 2016, you can see our Sun with the disk blacked out to get a better view of the solar prominences.

What is a solar prominence?

Solar prominences are gaseous features extending outward from the Sun's surface. They consist of hot ionized gases and reach from the Sun's photosphere (https://goo.gl/b3Jncm) up into the corona (https://goo.gl/XG45Tc). They extend over thousands, sometimes hundreds of thousands, of kilometers. More on solar prominences here:
https://en.wikipedia.org/wiki/Solar_prominence

Interested in the Sun? Take a look here:
http://sdo.gsfc.nasa.gov/
http://www.swpc.noaa.gov/

Global Star Party

+Paul Stewart is one of the many talented astronomers participating in the Global Star Party (+Global Star Party Live). The Global Star Party is a weekly hangout (Next Episode: https://goo.gl/HGj8Gv ) with talk about astronomy and live views of objects in space. Should you be interested in astronomy take a look here:
YouTube: http://www.youtube.com/GlobalStarPartyLive 
Twitter: https://twitter.com/globalstarparty
Flickr: https://www.flickr.com/groups/globalstarparty/

Image credit: Solar prominences +Paul Stewart
https://goo.gl/81mZSF CC BY 2.0 https://goo.gl/sZ7V7x

Take a look at his other images on his G+ (+Paul Stewart) and here on Flickrhttps://www.flickr.com/photos/astrostew/

#science   #astronomy   #sun #solarastronomy #solarprominence   #prominence   #space   #solarsystem  
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Amazing shot
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Pierre Markuse

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Earth from Space: Doha, Qatar

In this image you can see Doha, Qatar, from space, taken by NASA astronaut Tim Kopra (https://goo.gl/IJupLk) aboard the International Space Station (ISS). 

The area on Google maps:
https://goo.gl/lhrpB3

More on Doha:
https://en.wikipedia.org/wiki/Doha

Tim Kopra is aboard the ISS at the moment (Expedition 46, https://goo.gl/qG4Sza) and is posting pictures from space on his Twitter, follow him here: https://twitter.com/astro_tim

Image credit: Doha, Qatar, from space NASA/Tim Kopra https://goo.gl/gBD1Pl / Edited by +Pierre Markuse 

#space #doha   #qatar    #الدوحة‎   #earth #iss #internationalspacestation #photography #nasa #timkopra
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truly stunning ! thanks !
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Never stop being curious...
Introduction
Hello!

Feel free to follow me or send me a message. (Also follow me on Twitter if you like.)

Some of you use circles to categorize people in different interest groups, and though I'm interested in lots of stuff you might wanna put me in circles like:
  • Science (General science and especially astronomy, physics and space technology)
  • Politics (also mostly stuff concerning science)
Mostly I do post science related stuff but be aware I'll write about anything that comes to mind. Just have a look at my posts and you'll see what exactly is going on.

If you expect an answer please stay nice and don't be a dick, it would also be a good idea to write English or German. French is also possible, but since my French is quite rusty I'll most probably answer English.
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