Barred Spiral Galaxy NGC 1313 - VLT: This is a view of the barred spiral galaxy NGC 1313 taken with the the European Southern Observatory's Very Large Telescope (VLT) in Chile on Dec. 16, 2003 through various broad-band (B, R, z) and narrow-band filters (H-alpha, [o I], [O III]). The colour composited image was made by assigning B to the blue channel, [O I] and [O III] to the green channel, and R, z, and H-alpha to the red channel. This gives many of the nebulous shells along the outer spiral arms a yellow/red hue. The outline of the central region indicates the area observed with Hubble's Advanced Camera for Surveys.

Name: NGC 1313
Type: Local Universe : Galaxy : Type : Spiral
Category: Galaxies
Constellation: Reticulum
Distance: 20 million light years
Release date: 10 January 2007, 19:00
Credit: H. Boffin (FORS/VLT/ESO)

Barred Spiral Galaxy NGC 1313 - HST: This is a NASA/ESA Hubble Space Telescope image of the central region of the barred spiral galaxy NGC 1313. Hubble was used to resolve stars within the galaxy to do a census of various classes of stars distributed across the galaxy. The observations show that hot blue stars (of class B) are widely scattered across the galaxy. This is evidence of "infant mortality" in which the young, so-called open clusters where stars are born, quickly became gravitationally "unglued" and scattered their resident stars into the galaxy. NGC 1313 is 50,000 light-years across and lies 14 million light-years away in the southern constellation of Reticulum.

Name: NGC 1313
Type: Local Universe : Galaxy : Type : Spiral
Category: Galaxies
Constellation: Reticulum
Distance: 20 million light years
Release date: 10 January 2007, 19:00
Credit: NASA, ESA and A. Pellerin (STScI)

Constellation Ursa Major (ground-based image): This image at left, taken by Akira Fujii with a backyard telescope, shows the location of the Hubble observations near the Big Dipper.

Name: Ursa Major
Type: Milky Way : Sky Phenomenon : Night Sky : Constellation
Category: Miscellaneous
Release date: 6 March 2007, 19:00
Credit: A. Fujii

Extended groth strip - full Hubble image: The Extended Groth Strip, named after Princeton University physicist Edward Groth, is a small region in the constellation Ursa Major, based on the results of a series of observations by the Hubble Space Telescope. The Extended Groth Strip is 1.1 degrees long by 0.15 degrees wide (70.5 x 10.1 arcminutes, respectively).

Name: Extended Groth Strip (EGS)
Type: Early Universe : Galaxy : Grouping : Cluster
Category: Galaxies
Constellation: Bootes
Release date: 6 March 2007, 19:00
Credit: NASA, ESA, and M. Davis (University of California, Berkeley)

Extended groth strip - full Hubble image: The Extended Groth Strip, named after Princeton University physicist Edward Groth, is a small region in the constellation Ursa Major, based on the results of a series of observations by the Hubble Space Telescope. The Extended Groth Strip is 1.1 degrees long by 0.15 degrees wide (70.5 x 10.1 arcminutes, respectively).

Name: Extended Groth Strip (EGS)
Type: Early Universe : Galaxy : Grouping : Cluster
Category: Galaxies
Constellation: Bootes
Release date: 6 March 2007, 19:00
Credit: NASA, ESA, and M. Davis (University of California, Berkeley)

Extended groth strip - full Hubble image: The Extended Groth Strip, named after Princeton University physicist Edward Groth, is a small region in the constellation Ursa Major, based on the results of a series of observations by the Hubble Space Telescope. The Extended Groth Strip is 1.1 degrees long by 0.15 degrees wide (70.5 x 10.1 arcminutes, respectively).

Name: Extended Groth Strip (EGS)
Type: Early Universe : Galaxy : Grouping : Cluster
Category: Galaxies
Constellation: Bootes
Release date: 6 March 2007, 19:00
Credit: NASA, ESA, and M. Davis (University of California, Berkeley)

Extended groth strip - full Hubble image: The Extended Groth Strip, named after Princeton University physicist Edward Groth, is a small region in the constellation Ursa Major, based on the results of a series of observations by the Hubble Space Telescope. The Extended Groth Strip is 1.1 degrees long by 0.15 degrees wide (70.5 x 10.1 arcminutes, respectively).

Name: Extended Groth Strip (EGS)
Type: Early Universe : Galaxy : Grouping : Cluster
Category: Galaxies
Constellation: Bootes
Release date: 6 March 2007, 19:00
Credit: NASA, ESA, and M. Davis (University of California, Berkeley)

Extended Groth Strip - Detail of Hubble Image: Detail of the Hubble image of the Extended Groth Strip (EGS). The EGS, named after Princeton University physicist Edward Groth, is a small region in the constellation Ursa Major, based on the results of a series of observations by the Hubble Space Telescope. The Extended Groth Strip is 1.1 degrees long by 0.15 degrees wide (70.5 x 10.1 arcminutes, respectively).

Name: Extended Groth Strip (EGS)
Type: Early Universe : Cosmology : Morphology : Deep Field
Category: Cosmology
Constellation: Bootes
Release date: 6 March 2007, 19:00
Credit: NASA, ESA, and M. Davis (University of California, Berkeley)

A Sky Flush with Galaxies: This image, taken by NASA/ESA Hubble Space Telescope, represents a small section of a larger panoramic view of the heavens, where at least 50,000 galaxies reside.

Name: Extended Groth Strip (EGS)
Type: Early Universe : Cosmology : Morphology : Deep Field
Category: Cosmology
Constellation: Bootes
Release date: 6 March 2007, 19:00
Credit: NASA, ESA, M. Davis (University of California, Berkeley), S. Faber (University of California, Santa Cruz), and A. Koekemoer (STScI)

Puffed-up Atmosphere of a Star-hugging Gas Giant Planet (artist's impression): This artist's illustration shows an extrasolar planet orbiting very close to its host star. The planet designated HD 209458b, is about the size of Jupiter. Unlike Jupiter, the planet is so hot that its atmosphere is "puffed up." Starlight is heating the planet's atmosphere, causing hot gas to escape into space, like steam rising from a boiler.

Name: HD 209458b
Type: Milky Way : Planet : Type : Gas GiantMilky Way : Star : Circumstellar Material : Planetary System
Category: Exoplanets
Distance: 150 light years
Release date: 31 January 2007, 19:00
Credit: NASA, ESA, and G. Bacon (STScI)

Hubble measures atmospheric structure of extrasolar planet HD 209458b: The powerful vision of NASA's Hubble Space Telescope has allowed astronomers to study for the first time the layer-cake structure of the atmosphere of a planet orbiting another star. Hubble discovered a dense upper layer of hot hydrogen gas where the super-hot planet's atmosphere is bleeding off into space.

Name: HD 209458b, Jupiter, Sun
Type: Milky Way : Star : Circumstellar Material : Planetary SystemSolar System : StarSolar System : Planet : Type : Gas Giant
Category: Exoplanets
Distance: 150 light years
Release date: 31 January 2007, 19:00
Credit: NASA, ESA, and A. Feild (STScI)