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Researchers using +NASA  +Hubble Space Telescope  have detected a stratosphere and temperature inversion in the atmosphere of a planet several times the mass of Jupiter, called WASP-33b.

Earth's stratosphere sits above the troposphere, the turbulent, active-weather region that reaches from the ground to the altitude where nearly all clouds top out. In the troposphere, the temperature is warmer at the bottom — ground level — and cools down at higher altitudes. The stratosphere is just the opposite: There, the temperature rises at higher altitudes. This is called a temperature inversion, and it happens because ozone in the stratosphere absorbs some of the sun's radiation, preventing it from reaching the surface and warming this layer of the atmosphere. Similar temperature inversions occur in the stratospheres of other planets in our solar system, such as Jupiter and Saturn.

But WASP-33b is so close to its star that its atmosphere is a scathing 10,000 degrees Fahrenheit, and its atmosphere is so hot the planet might actually have titanium oxide rain.

Please join +Tony Darnell Dr, +Carol Christian and +Scott Lewis as they discuss the atmosphere of this Jupiter-sized #exoplanet with the astronomers who made the observations.

Read more here:
http://hubblesite.org/newscenter/archive/releases/2015/25/

#Space   #astronomy #Hubble25 #exoplanets #WASP -33b  #cosmology   #Pluto  
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The Atmosphere of Exoplanet WASP-33b
Thu, July 23, 3:00 PM
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These temperatures are incredible, almost star like? I'm no expert but i certainly think this is something America needs to know, all of this knowledge may lead us into an unknown area that could help us in our pursuit of science.
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A huge congratulations to the New Horizons team on the spacecraft's historic first visit to Pluto, happening now! 
Pluto nearly fills the frame in this image from the Long Range Reconnaissance Imager (LORRI) aboard NASA's New Horizons spacecraft, taken on July 13, 2015 when the spacecraft was 476000 miles (768000 kilometers) from the surface. This is the last and most detailed image sent to Earth before the ...
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Fantastic 
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Recent space telescope missions such as Kepler and Spitzer have given us unprecedented data that have shown that there are many, many planets orbiting other stars.  Current estimates show that there are enough planets in our galaxy that for every star in the Milky Way, there are on average 1.6 planets in orbit around them.  Many of these planets are like the Earth and have the potential to harbor life.

In our first FutureInSpace Hangout, we will explore this relatively brand new study in space astronomy with expert members of the American Astronomical Society, Dr. Natalie Batalha and Dr Sara Seager.  We will discuss the current state of exoplanet research and look at what exciting results may be in store for us as we deploy the next generation of space telescope like the James Webb Space Telescope (JWST), the Wide-Field Infrared Space Telescope (WFIRST), the Transiting Exoplanet Survey Satellite (TESS) and the future High Definition Space Telescope (HDST).

Please join +Tony Darnell Dr. +Alberto Conti and Dr. Harley Thronson and bring your questions and comments for our experts and we look forward to "Hanging Out" with you.
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Future In Space Hangout: The Multitude of Planets
Fri, July 17, 3:00 PM
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Baltimore-area residents: Due to exceptional circumstances, we must cancel the Public Lecture scheduled for Tuesday, July 7, 2015. Our sincere apologies for any inconvenience this may create for our audience members.

The Hubble Public Lecture series will resume on its usual date of Tuesday, August 4, 2015 at 8 PM.
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On 
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Seeing Into the Future: A Visionary New Space Telescope

If you're in the New York area today and have plans to go to the American Museum of Natural History, stop by the Hayden Planetarium at 1pm EDT to watch a panel discussion hosted by Neil deGrasse Tyson and featuring many astronomers from the Space Telescope Science Institute!
http://www.amnh.org/learn-teach/adults/hayden-planetarium-programs/seeing-into-the-future-a-visionary-new-space-telescope
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Bonjour 
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The New Horizons mission is rapidly approaching Pluto, arriving in July. Learn about Hubble's role in exploring Pluto's neighborhood with our new Hubble 25th anniversary article: http://hubble25th.org/science/2
The Hubble Space Telescope provides a detailed look at the planets, moons, rings, asteroids and comets in our celestial backyard. These investigations have helped answer age-old questions about how the solar system began, how planets formed and how Earth evolved. Hubble also explores the ...
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, :-X
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Astronomers have uncovered new clues about the formation of planets around other stars. One question is, do the atmospheres around planets survive or how are they stripped off?  Some of the Earth's atmosphere was stripped off during formation. What happens in other exoplanet systems?

The question is, why?  Please join +Tony Darnell Dr.+Carol Christian and +Scott Lewis as we discuss a peculiar observation made with the Hubble Space Telescope around a nearby exoplanet.

Read more here:
http://hubblesite.org/newscenter/archive/releases/2015/17/

#PlutoTime   Webtool:
http://www.nasa.gov/feature/nasa-lets-you-experience-pluto-time-with-new-custom-tool

#Space #science     #Astronomy     #hubble25    #hubble    #exoplanets
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Planet Orbiting around Nearby Star Gives Clues to the Formation of Atmospheres
Thu, June 25, 3:00 PM
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"In an effort to establish how the sun and its planets compare to the newfound systems, a pair of astronomers suggest that our early solar system may have contained as many as four planets orbiting closer to the sun than Venus, and that a series of cataclysmic collisions left Mercury as the last one standing."
http://www.space.com/29637-mercury-survives-collision-with-other-planets.html    12 June
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Hubble Space Telescope

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This image shows our previous best view of Pluto, provided by the Hubble Space Telescope, as it morphs into the spectacular new image from the New Horizons mission. The Hubble image was released in 2010, and the New Horizons image of the same region was taken on July 13 as the spacecraft -- nearing the culmination of its decade-long journey -- successfully captured the first detailed images of the distant dwarf planet. #Plutoflyby

Credits: NASA/ESA/M. Buie (SwRI)/STScI/JHU-APL/SwRI
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Sarebbe meglio poter leggere in italiano
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+NASA Q&A's Tomorrow Starting at 12pm EDT

Please join in on +NASA #NASASWW and discuss important questions like:
Could ancient asteroids harm the Earth?
Could comets have brought life to Earth?
Do habitable worlds exist beyond Earth?
What worlds lie beyond the realm of gas giants?
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It isn't likely to happen on this app. any time soon!
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The Andromeda galaxy is our Milky Way's nearest neighbor in space. The majestic spiral of over 100 billion stars is comparable in size to our home galaxy. At a distance of 2.5 million light-years, it is so close to us the galaxy can be seen as a cigar-shaped smudge of light high in the autumn sky.

But if you could see the huge bubble of hot, diffuse plasma surrounding it, it would appear 100 times the angular diameter of the full Moon!

The gargantuan halo is estimated to contain half the mass of the stars in the Andromeda galaxy itself. It can be thought of as the "atmosphere" of a galaxy. Astronomers using Hubble identified the gas in Andromeda's halo by measuring how it filtered the light of distant bright background objects called quasars. It is akin to seeing the glow of a flashlight shining through a fog.

This finding promises to tell astronomers more about the evolution and structure of one of the most common types of galaxies in the universe.

Please join +Tony Darnell Dr.+Carol Christian and +Scott Lewis as they discuss this latest finding from #Hubble with the astronomers who made the observations.

Read more here:
http://hubblesite.org/newscenter/archive/releases/2015/15/

It's +NASA Small Worlds Week! Learn about all kinds of cool things related to tiny, rocky, icy, dwarfy worlds:
http://sunearthday.nasa.gov/discoveries/index.php
#NASASWW 

JHU APL Broadcasts every day:
http://pluto.jhuapl.edu/Multimedia/Videos/Broadcasts.php

All things New Horizons:
http://www.nasa.gov/mission_pages/newhorizons/main/index.html

NASA Press Coverage of New Horizons:
http://www.nasa.gov/press-release/nasa-announces-updated-television-coverage-media-activities-for-pluto-flyby


#PlutoTime  
Webtool:
http://www.nasa.gov/feature/nasa-lets-you-experience-pluto-time-with-new-custom-tool

#PlutoPaloozza
http://pluto.jhuapl.edu/Participate/community/Corps-of-Discovery.php

#Space   #astronomy #Hubble25 #andromeda #galaxy #cosmology   #Pluto  
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Hubble Finds Giant Halo Around the Andromeda Galaxy
Thu, July 9, 3:00 PM
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excelente¡¡¡¡¡
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Enjoy your new Tonight's Sky, skywatchers! 
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I like it
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Latest News: Hubble has discovered an immense cloud of hydrogen dubbed "The Behemoth" bleeding off a planet orbiting a nearby star, as portrayed in the artist's depiction here. The enormous, comet-like feature is about 50 times the size of the parent star. The hydrogen is evaporating from a warm, Neptune-sized planet, due to extreme radiation from the star. A phenomenon this large has never before been seen around any exoplanet. 
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Join Hubble's journey of cosmic discovery.
Introduction

HubbleSite.org is the online home of NASA's Hubble Space Telescope. HubbleSite is produced by the Space Telescope Science Institute in Baltimore, MD, which conducts Hubble's science mission.

Nearly 400 years after Galileo first observed the heavens through a telescope, we continue to seek answers to age-old questions about the universe. And while the technology has evolved over the centuries, the inquiry remains essentially the same: What's out there, where did it come from, and what does it mean?

At the Space Telescope Science Institute (STScI), we're working hard to study and explain the once-unimaginable celestial phenomena now made visible by the Hubble Space Telescope's cutting-edge technology.

HubbleSite is produced by the Space Telescope Science Institute's Office of Public Outreach.