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Artist's impression of the hot planet Osiris

This is an artistic illustration of the gas giant planet HD 209458b (unofficially named Osiris) located 150 light-years away in the constellation Pegasus.

This is a "hot Jupiter" class planet. Estimated to be 220 times the mass of Earth. The planet's atmosphere is almost 1000 degrees celsius. It orbits very closely to its bright sun-like star, and the orbit is tilted edge-on to Earth. This makes the planet an ideal candidate for the NASA/ESA Hubble Space Telescope to analyse and make precise measurements of the chemical composition of the giant's atmosphere as starlight filters though it. To the surprise of astronomers, they have found much less water vapor in the atmosphere than standard planet-formation models predict.

Credit:

NASA, ESA/Hubble and the Hubble Heritage Team


#universe #galaxy #telescope #space #ESO #NASA #stars
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New view of the Pillars of Creation

The NASA/ESA Hubble Space Telescope has revisited one of its most iconic and popular images: the Eagle Nebula’s Pillars of Creation.

This image shows the pillars as seen in infrared light, allowing it to pierce through obscuring dust and gas and unveil a more unfamiliar β€” but just as amazing β€” view of the pillars.

In this ethereal view the entire frame is peppered with bright stars and baby stars are revealed being formed within the pillars themselves. The ghostly outlines of the pillars seem much more delicate, and are silhouetted against an eerie blue haze.

Hubble also captured the pillars in visible light.

Credit:

NASA, ESA/Hubble and the Hubble Heritage Team


#universe #galaxy #telescope #space #ESO #NASA #stars
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The Pitch-Black Exoplanet WASP-12b

This artist’s impression shows the exoplanet WASP-12b β€” an alien world as black as fresh asphalt, orbiting a star like our Sun. Scientists were able to measure its albedo: the amount of light the planet reflects. The results showed that the planet is extremely dark at optical wavelengths.

Credit:

NASA, ESA, and G. Bacon (STScI)


#universe #galaxy #telescope #space #ESO #NASA #stars
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Hubble - The Ghostbuster Nebula

The NASA/ESA Hubble Space Telescope has caught a glimpse of a colorful cosmic ghost, the glowing remains of a dying star called NGC 6369. The glowing apparition is known to amateur astronomers as the '*Little Ghost Nebula*', because it appears as a small, ghostly cloud surrounding the faint, dying central star.

Credit:

NASA/ESA and The Hubble Heritage Team (STScI/AURA)

#universe #galaxy #telescope #space #ESO #NASA #stars
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A rose blooming in space - for Mothers Day

Resembling a delicate rose floating in space, the nebula N11A is seen in a new light in a true-colour image taken by the NASA/ESA Hubble Space Telescope. Fierce radiation from massive stars embedded at the centre of N11A illuminates the surrounding gas with a soft fluorescent glow. N11A lies within a spectacular star-forming region in the Large Magellanic Cloud, a small nearby companion galaxy to our own Milky Way Galaxy, visible from the Southern Hemisphere. This nebula is particularly interesting for astronomers since it is the smallest and most compact nebula in that region and represents the most recent massive star formation event there. The excellent imaging power of Hubble has enabled astronomers to see this nebula in more detail and to study the structure of the hot gas envelope as well as the stars embedded in its centre. Shocks and strong stellar winds from the recently born, massive stars in the bright core of N11A have scooped out a cavity in the gas and dust. The fierce radiation causes the surrounding gas to fluoresce in a way similar to a neon light. Hubble's image provides a much clearer picture of the nebula, making it possible for the first time to identify the stars that actually make it glow. Such information is essential for a better understanding of the formation of massive stars, that is, stars more than 10 times as heavy as our Sun. 'We need to study the properties of star-forming regions in our neighbouring galaxies to understand how stars are formed in the distant, young Universe, ' explains Mohammad Heydari-Malayeri who led the team studying these Hubble observations.

Credit:

European Space Agency & Mohammad Heydari-Malayeri (Observatoire de Paris, France)

#universe #galaxy #telescope #space #ESO #NASA #stars
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The Cartwheel Galaxy

Located 500 million light-years away in the constellation Sculptor, the galaxy looks like a wagon wheel. The galaxy's nucleus is the bright object in the center of the image; the spoke-like structures are wisps of material connecting the nucleus to the outer ring of young stars. The galaxy's unusual configuration was created by a nearly head-on collision with a smaller galaxy about 200 million years ago.

Credit:

Curt Struck and Philip Appleton (Iowa State University), Kirk Borne (Hughes STX Corporation), and Ray Lucas ( Space Telescope Science Institute), and NASA/ESA

#universe #galaxy #telescope #space #ESO #NASA #stars
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Artist impression of Gliese 436b

This artist's concept shows the enormous comet-like cloud of hydrogen bleeding off of the warm, Neptune-sized planet Gliese 436b just 30 light-years from Earth. Also depicted is the parent star, which is a faint red dwarf named Gliese 436. The hydrogen is evaporating from the planet due to extreme radiation from the star. A phenomenon this large has never before been seen around any exoplanet.

Credit:

NASA, ESA, STScI, and G. Bacon

#universe #galaxy #telescope #space #ESO #NASA #stars
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Saturn - polar aurora

This is the first image of Saturn's ultraviolet aurora taken by the Space Telescope Imaging Spectrograph (STIS) on board the Hubble Space Telescope in October 1997, when Saturn was a distance of 810 million miles (1.3 billion kilometers) from Earth. The new instrument, used as a camera, provides more than ten times the sensitivity of previous Hubble instruments in the ultraviolet. STIS images reveal exquisite detail never before seen in the spectacular auroral curtains of light that encircle Saturn's north and south poles and rise more than a thousand miles above the cloud tops.

Credit:

J.T. Trauger (Jet Propulsion Laboratory) and NASA/ESA
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The Whirlpool Galaxy

This image by NASA's Hubble Space Telescope shows a face-on view of the spiral galaxy M51, dubbed the Whirlpool Galaxy.

Taken in visible light, it highlights the attributes of a typical spiral galaxy, including graceful, curving arms, pink star-forming regions, and brilliant blue strands of star clusters.

Credit:

Credit: NASA, ESA, S. Beckwith (STScI) and the Hubble Heritage Team (STScI/AURA)
#universe #galaxy #telescope #space #ESO #NASA #stars
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Cosmic dance of destruction

The NASA/ESA Hubble Space Telescope is witnessing a grouping of galaxies engaging in a slow dance of destruction that will last for billions of years. The galaxies are so tightly packed together that gravitational forces are beginning to rip stars from them and distort their shapes. Those same gravitational forces eventually could bring the galaxies together to form one large galaxy.

The name of this grouping, Seyfert's Sextet, implies that six galaxies are participating in the action. But only four galaxies are on the dance card. The small face-on spiral with the prominent arms [center] of gas and stars is a background galaxy almost five times farther away than the other four. Only a chance alignment makes it appear as if it is part of the group. The sixth member of the sextet isn't a galaxy at all but a long 'tidal tail' of stars [below, right] torn from one of the galaxies.

Credit:

NASA/ESA, J. English (U. Manitoba), S. Hunsberger, S. Zonak, J. Charlton, S. Gallagher (PSU), and L. Frattare (STScI)

#universe #galaxy #telescope #space #ESO #NASA #stars
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