Wide-field image of the Ring Nebula (ground-based image): This image from the Digitized Sky Survey shows the Ring Nebula (Messier 57) and its surroundings.

Name: M 57, Messier 57, NGC 6720, Ring Nebula
Type: Milky Way : Nebula : Type : Planetary
Category: NebulaeStars
Constellation: Lyra
Distance: 2500 light years
Release date: 23 May 2013, 16:00
Credit: NASA, ESA, Digitized Sky Survey 2

Hubble image of Arp 142: This image shows the two galaxies interacting. NGC 2936, once a standard spiral galaxy, and NGC 2937, a smaller elliptical, bear a striking resemblance to a penguin guarding its egg. This image is a combination of visible and infrared light, created from data gathered by the NASA/ESA Hubble Space Telescope Wide Field Planetary Camera 3 (WFC3).

Name: Arp 142, NGC 2936, NGC 2937
Type: Local Universe : Galaxy : Type : Interacting
Category: Galaxies
Constellation: Hydra
Distance: 400 million light years
Release date: 20 June 2013, 18:00
Credit: NASA, ESA and the Hubble Heritage Team (STScI/AURA)

The area around merging galaxy duo Arp 142 (ground-based image): This image from the Digitized Sky Survey shows the area around a pair of merging galaxies known as Arp 142 in the constellation of Hydra. This pair is made up of once-spiral galaxy NGC 2936, and elliptical galaxy NGC 2937.

Name: Arp 142, NGC 2936, NGC 2937
Type: Local Universe : Galaxy : Type : Interacting
Category: Galaxies
Constellation: Hydra
Distance: 400 million light years
Release date: 20 June 2013, 18:00
Credit: NASA, ESA, Digitized Sky Survey 2

Artist’s impression of the deep blue planet HD 189733b: This illustration shows HD 189733b, a huge gas giant that orbits very close to its host star HD 189733. The planet's atmosphere is scorching with a temperature of over 1000 degrees Celsius, and it rains glass, sideways, in howling 7000 kilometre-per-hour winds. At a distance of 63 light-years from us, this turbulent alien world is one of the nearest exoplanets to Earth that can be seen crossing the face of its star. By observing this planet before, during, and after it disappeared behind its host star during orbit, astronomers were able to deduce that HD 189733b is a deep, azure blue — reminiscent of Earth's colour as seen from space.

Name: HD 189733b
Type: Milky Way : Planet : Special Cases : Hot JupiterMilky Way : Star : Circumstellar Material : Planetary System
Category: Exoplanets
Distance: 65 light years
Release date: 11 July 2013, 15:00
Credit: NASA, ESA, M. Kornmesser

Exotic blue planet HD 189733b (artist’s impression): This illustration shows a "hot Jupiter" planet known as HD 189733b orbiting its star, HD 189733. The NASA/ESA Hubble Space Telescope measured the actual visible light colour of the planet, which is deep blue. This colour is not due to the presence of oceans, but is caused by the effects of a scorching atmosphere where silicate particles melt to make "raindrops" of glass that scatter blue light more than red light. The planet HD 189733b was discovered in 2005 and is so close to its star that it is gravitationally "tidally locked", so that one side always faces the star and the other side is always dark. Because the planet is only 63 light-years from Earth, a visitor would see many of the same stars we see in our nighttime sky, though the constellation patterns would be different. Our Sun and the nearest star to our Sun, Alpha Centauri, appear as two faint stars near the centre of the image.

Name: HD 189733b
Type: Milky Way : Planet : Special Cases : Hot JupiterMilky Way : Star : Circumstellar Material : Planetary System
Category: Exoplanets
Distance: 65 light years
Release date: 11 July 2013, 15:00
Credit: NASA, ESA, and G. Bacon (AURA/STScI)

Exotic blue planet HD 189733b (labelled artist’s impression): This illustration shows a "hot Jupiter" planet known as HD 189733b orbiting its star, HD 189733. The NASA/ESA Hubble Space Telescope measured the actual visible light colour of the planet, which is deep blue. This colour is not due to the presence of oceans, but is caused by the effects of a scorching atmosphere where silicate particles melt to make "raindrops" of glass that scatter blue light more than red light. Because the planet is only 63 light-years from Earth, a visitor would see many of the same stars we see in our nighttime sky, though the constellation patterns would be different. Our Sun and the nearest star to our Sun, Alpha Centauri, are labelled here – two faint stars near the centre of the image. Also labelled is Sirius, the brightest star in our skies in the constellation of Canis Major (The Greater Dog).

Name: HD 189733b
Type: Milky Way : Planet : Special Cases : Hot JupiterMilky Way : Star : Circumstellar Material : Planetary System
Category: Exoplanets
Distance: 65 light years
Release date: 11 July 2013, 15:00
Credit: NASA, ESA, and G. Bacon (AURA/STScI)

Sample of non-star-forming galaxies from the COSMOS survey: This image shows 20 of the quenched galaxies — galaxies that are no longer forming stars — seen in the Hubble COSMOS observations. Each galaxy is identified by a crosshair at the centre of each frame. Quenched galaxies in the distant Universe are much smaller than those seen nearby. It was thought that these small galaxies merged with other smaller, gas-free galaxies to grow bigger, but it turns out that larger galaxies were "switching off" at later times and adding their numbers to those of their smaller and older siblings, giving the mistaken impression of individual galaxy growth over time.

Name: COSMOS FIELD
Type: Early Universe : Cosmology : Morphology : Deep Field
Category: Cosmology
Release date: 1 August 2013, 15:00
Credit: NASA, ESA, M. Carollo (ETH Zurich)

The full COSMOS field (UltraVISTA): This view shows part of the COSMOS field in the constellation of Sextans (The Sextant), as viewed by the UltraVISTA survey in infrared light. This region of sky has been extensively studied by many telescopes, including Hubble. Hubble viewed this field in near-infrared light – at full resolution, the Hubble image of the entire field would measure some 100,800 x 100,800 pixels. Hubble's image was taken using a single filter, meaning that it appears in black and white (Hubble's F814W, or I-band, filter). This image was created by combining more than 6000 individual images from the VISTA survey telescope at ESO's Paranal Observatory in Chile.

Name: COSMOS FIELD
Type: Early Universe : Cosmology : Morphology : Deep Field
Category: Cosmology
Constellation: Sextans
Release date: 1 August 2013, 15:00
Credit: ESO/UltraVISTA team. Acknowledgement: TERAPIX/CNRS/INSU/CASU

The full COSMOS field (UltraVISTA): This view shows part of the COSMOS field in the constellation of Sextans (The Sextant), as viewed by the UltraVISTA survey in infrared light. This region of sky has been extensively studied by many telescopes, including Hubble. Hubble viewed this field in near-infrared light – at full resolution, the Hubble image of the entire field would measure some 100,800 x 100,800 pixels. Hubble's image was taken using a single filter, meaning that it appears in black and white (Hubble's F814W, or I-band, filter). This image was created by combining more than 6000 individual images from the VISTA survey telescope at ESO's Paranal Observatory in Chile.

Name: COSMOS FIELD
Type: Early Universe : Cosmology : Morphology : Deep Field
Category: Cosmology
Constellation: Sextans
Release date: 1 August 2013, 15:00
Credit: ESO/UltraVISTA team. Acknowledgement: TERAPIX/CNRS/INSU/CASU