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Pedro Vilas Boas
Lives in Lisbon, Portugal
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Pedro Vilas Boas

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How Big Is Pluto’s Atmosphere?

By Michael Summers
New Horizons Co-Investigator

"Professor Michael Summers Michael E. Summers is a professor of Planetary Science and Astronomy at George Mason University, and specializes in the study of the chemistry and dynamics of planetary atmospheres. He is a New Horizons co-investigator and member of the atmospheres science theme team."

[...]

"But now consider Pluto. Its atmosphere has a near-surface equivalent thickness of about 40 kilometers, which is almost 4% of its 1,200- kilometer (or so) radius. But the “outer limit” of Pluto’s atmosphere is very difficult to define, although we know that it is very far from the surface. If one defines it similar to the way we define the exobase of Earth’s atmosphere, then Pluto’s atmosphere has an outer limit of at least seven times Pluto’s radius above it surface. This means that the volume of Pluto’s atmosphere is over 350 times the volume of Pluto itself! This illustrates what a strange and wonderful new kind of world we are about to visit and explore.

And this estimate is conservative. As I noted, the outer limit for Pluto’s atmosphere is ill-defined because of the gradual way that the atmosphere merges with the vacuum of space. It could in fact be farther than seven Pluto radii from its surface, and thus its volume would be even larger."

[...]

Read entire article: http://pluto.jhuapl.edu/News-Center/Science-Shorts.php?page=ScienceShorts_02_24_2015

#Pluto #space #nasa #plutoflyby
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Accurate!
 
Even the Avengers run into lag on video calls.
Nick Fury deals with an unruly conference call in this 'Avengers' parody by YouTube user Pixelspersecond.
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Neil deGrassee Tyson...wish he would run for president! 
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now I need/want a drone!
 
Better than what your smartphone took last night
If you're browsing YouTube for some highlights from the fireworks shows around the US yesterday, make sure you don't settle for a shaky smartphone video. Some brave videographers have started...
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Lara Croft
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love this!
 
An experimental 3D representation of the gas region IC 1396 and the Elephants Trunk nebula, a huge pillar of interstellar gas and dust. The animations are made by astrophotographer J-P Metsävainio by creating an artificial parallax to the images taken from his observatory located in the very center of the city Oulu in Finland. IC 1396 is an ionized gas region located in the constellation Cepheus about 2,400 light years away from Earth. 
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The next three decades will see an end of the era of big ozone holes. In a new study, scientists say that the ozone hole will be consistently smaller by the year 2040.

#EarthRightNow
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Missing you already #pennyDreadful  
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Tb gostei bastante do episódio que vi :)
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Addicted to the internet, chocolate, sci fi, gaming and eyebrows.
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Lisbon, Portugal
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Pedro Vilas Boas's +1's are the things they like, agree with, or want to recommend.
Introducing our smart contact lens project
googleblog.blogspot.com

You've probably heard that diabetes is a huge and growing problem—affecting one in every 19 people on the planet. But you may not be familia

[MP3] Avec Sans’ ‘Hold On’
feedproxy.google.com

Secretly bubbling away in the background, London’s Avec Sans are our next big ElectroPop hope. We’ve been following them with great interest

Game of Thrones
plus.google.com

Five Kings. One Throne. Sundays at 9 on HBO.

Life In A Day
www.youtube.com

Life In A Day is a historic film capturing for future generations what it was like to be alive on the 24th of July, 2010. Executive produced

GALILEU Lisboa
plus.google.com

GALILEU Lisboa hasn't shared anything on this page with you.

Game of thrones soundtrack on piano
www.youtube.com

The last few days i got the soundtrack from the opening stuck in my head. So i tried to play it on piano. So thats what finally came out...

Campanha de Natal GALILEU
www.galileu.pt

Este natal, ao fazer formação com a GALILEU oferecemos-lhe um cheque oferta Fnac que poderá utilizar em qualquer loja Fnac. CAMPANHA. Cheque

Iron Sky Comic Issue #1 - Bad Moon Rising
www.ironsky.net

Read the Prequel Comics and get the first sneak peek of Iron Sky

Baldwin IV of Jerusalem - Wikipedia, the free encyclopedia
en.wikipedia.org

Baldwin IV redirects here. It can also refer to Baldwin IV, Count of Flanders and to Baldwin IV, Count of Hainaut. William of Tyre discovers

Language communities of Twitter
flowingdata.com

Recently Popular. Best Math Question EVAR Best statistics question ever 440 comments. yoda Yoda pie chart 7 comments. unfacebook Where peopl

Best statistics question ever
flowingdata.com

Recently Popular. Best Math Question EVAR Best statistics question ever 431 comments. yoda Yoda pie chart 6 comments. unfacebook Where peopl

Tourism marketing: Is this the best Portugal can do? | Michael Leander
www.michaelleander.me

Home. Speaking topics. Email marketing; Social media marketing; Change in marketing. Bio. Michael Leander long bio. Testimonials; News; Even

Sketches & Stuff: Sci-fi again
sketcherblock.blogspot.com

Blog Archive. ▼ 2011 (18). ▼ September (18). Sci-fi again; Heads; Ribbit! Change of pace; The Monster Mash; Random Doodling; Trooper; Machin

Sketches & Stuff: Change of pace
sketcherblock.blogspot.com

Blog Archive. ▼ 2011 (15). ▼ September (15). Change of pace; The Monster Mash; Random Doodling; Trooper; Machinery; Weekend Doodling; I'

Sketches & Stuff: The Monster Mash
sketcherblock.blogspot.com

Blog Archive. ▼ 2011 (15). ▼ September (15). Change of pace; The Monster Mash; Random Doodling; Trooper; Machinery; Weekend Doodling; I'

Sketches & Stuff: Machinery
sketcherblock.blogspot.com

Blog Archive. ▼ 2011 (13). ▼ September (13). Random Doodling; Trooper; Machinery; Weekend Doodling; I'm Super, thanks for asking! Monste

Sketches & Stuff: Trooper
sketcherblock.blogspot.com

Blog Archive. ▼ 2011 (13). ▼ September (13). Random Doodling; Trooper; Machinery; Weekend Doodling; I'm Super, thanks for asking! Monste

Sketches & Stuff: World of Warcraft
sketcherblock.blogspot.com

World of Warcraft. This is a drawing I made for the daughter of a friend of mine. We played World of Warcraft at the time, so this is her ch

We found this great place early this week and pretty much dropped by every day (sometimes twice a day). That's how good it is!
Public - 5 years ago
reviewed 5 years ago
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