The unusual cluster Terzan: Peering through the thick dust clouds of the galactic bulge an international team of astronomers has revealed the unusual mix of stars in the stellar cluster known as Terzan 5. The new results indicate that Terzan 5 is in fact one of the bulge's primordial building blocks, most likely the relic of the very early days of the Milky Way. Observations were made with the Wide Field Camera 3 (WFC3) on board the Hubble, the Multi-conjugate Adaptive Optics Demonstrator (MAD) instrument on ESO's Very Large Telescope and the second generation Near Infrared Camera at the Keck Telescope.

Name: Terzan 5
Type: Milky Way : Star : Grouping : Cluster
Category: Star Clusters
Constellation: Sagittarius
Distance: 20000 light years
Release date: 7 September 2016, 16:00
Credit: NASA/ESA/Hubble/F. Ferraro

Around the star cluster Terzan 5: This wide-field image, based on data from Digitized Sky Survey 2, shows the whole region around the stellar grouping Terzan 5.

Name: Terzan 5
Type: Milky Way : Star : Grouping : Cluster
Category: Star Clusters
Constellation: Sagittarius
Release date: 7 September 2016, 16:00
Credit: ESO/Digitized Sky Survey 2

Stingray Nebula and SAO 244567: This image of the Stingray nebula, a planetary nebula 2700 light-years from Earth, was taken with the Wide Field and Planetary Camera 2 (WFPC2) in 1998. In the centre of the nebula the fast evolving star SAO 244567 is located. Observations made within the last 45 years showed that the surface temperature of the star increased by almost 40 000 degree Celsius. Now new observations of the spectra of the star have revealed that SAO 244567 has started to cool again.

Name: SAO 244567, Stingray Nebula
Type: Milky Way : StarMilky Way : Nebula : Type : Planetary
Category: NebulaeStars
Constellation: Ara
Distance: 2700 light years
Release date: 13 September 2016, 16:00
Credit: ESA/Hubble & NASA

SAO 244567: This artist’s impression shows a still from the video showing the evolution of SAO 244567’s rapid evolution.

Name: SAO 244567
Type: Milky Way : Star
Category: Stars
Distance: 2500 light years
Release date: 13 September 2016, 16:00
Credit: ESA/Hubble & NASA

Artist’s impression of exoplanet orbiting two stars: This artist’s impression shows a gas giant planet circling the two red dwarf stars in the system OGLE-2007-BLG-349, located 8 000 light-years away. The planet — with a mass similar to Saturn — orbits the two stars at a distance of roughly 480 million kilometres. The two red dwarf stars are a mere 11 million kilometres apart. The artist's impression is based on observations made with Hubble that helped astronomers confirm the existence of a planet orbiting The two stars in the system. The system is too far away for Hubble to take an image of the planet. Instead, its presence was inferred from gravitational microlensing. This phenomenon occurs when the gravity of a foreground star bends and amplifies the light of a background star that momentarily aligns with it. The particular character of the light magnification can reveal clues to the nature of the foreground star and any associated planets. The Hubble observations represent the first time such a three-body system has been confirmed using the gravitational microlensing technique.

Name: OGLE-2007-BLG-349
Type: Milky Way : Star : Circumstellar Material : Planetary System
Category: ExoplanetsIllustrations
Distance: 8000 light years
Release date: 22 September 2016, 16:00
Credit: NASA, ESA, and G. Bacon (STScI)

GOODS South field: Among other data, scientists used the galaxies visible in the Great Observatories Origins Deep Survey (GOODS) to recalculate the total number of galaxies in the observable Universe. The image was taken by the NASA/ESA Hubble Space Telescope and covers a portion of the southern field of GOODS. This is a large galaxy census, a deep-sky study by several observatories to trace the formation and evolution of galaxies.

Name: GOODS South Field
Type: Early Universe : Cosmology
Category: CosmologyGalaxies
Constellation: Fornax
Release date: 13 October 2016, 16:00
Credit: NASA, ESA/Hubble

GOODS South field: Among other data, scientists used the galaxies visible in the Great Observatories Origins Deep Survey (GOODS) to recalculate the total number of galaxies in the observable Universe. The image was taken by the NASA/ESA Hubble Space Telescope and covers a portion of the southern field of GOODS. This is a large galaxy census, a deep-sky study by several observatories to trace the formation and evolution of galaxies.

Name: GOODS South Field
Type: Early Universe : Cosmology
Category: CosmologyGalaxies
Constellation: Fornax
Release date: 13 October 2016, 16:00
Credit: NASA, ESA/Hubble

GOODS South field: Among other data, scientists used the galaxies visible in the Great Observatories Origins Deep Survey (GOODS) to recalculate the total number of galaxies in the observable Universe. The image was taken by the NASA/ESA Hubble Space Telescope and covers a portion of the southern field of GOODS. This is a large galaxy census, a deep-sky study by several observatories to trace the formation and evolution of galaxies.

Name: GOODS South Field
Type: Early Universe : Cosmology
Category: CosmologyGalaxies
Constellation: Fornax
Release date: 13 October 2016, 16:00
Credit: NASA, ESA/Hubble

GOODS South field: Among other data, scientists used the galaxies visible in the Great Observatories Origins Deep Survey (GOODS) to recalculate the total number of galaxies in the observable Universe. The image was taken by the NASA/ESA Hubble Space Telescope and covers a portion of the southern field of GOODS. This is a large galaxy census, a deep-sky study by several observatories to trace the formation and evolution of galaxies.

Name: GOODS South Field
Type: Early Universe : Cosmology
Category: CosmologyGalaxies
Constellation: Fornax
Release date: 13 October 2016, 16:00
Credit: NASA, ESA/Hubble

GOODS South field: Among other data, scientists used the galaxies visible in the Great Observatories Origins Deep Survey (GOODS) to recalculate the total number of galaxies in the observable Universe. The image was taken by the NASA/ESA Hubble Space Telescope and covers a portion of the southern field of GOODS. This is a large galaxy census, a deep-sky study by several observatories to trace the formation and evolution of galaxies.

Name: GOODS South Field
Type: Early Universe : Cosmology
Category: CosmologyGalaxies
Constellation: Fornax
Release date: 13 October 2016, 16:00
Credit: NASA, ESA/Hubble

GOODS South field: Among other data, scientists used the galaxies visible in the Great Observatories Origins Deep Survey (GOODS) to recalculate the total number of galaxies in the observable Universe. The image was taken by the NASA/ESA Hubble Space Telescope and covers a portion of the southern field of GOODS. This is a large galaxy census, a deep-sky study by several observatories to trace the formation and evolution of galaxies.

Name: GOODS South Field
Type: Early Universe : Cosmology
Category: CosmologyGalaxies
Constellation: Fornax
Release date: 13 October 2016, 16:00
Credit: NASA, ESA/Hubble

GOODS South field: Among other data, scientists used the galaxies visible in the Great Observatories Origins Deep Survey (GOODS) to recalculate the total number of galaxies in the observable Universe. The image was taken by the NASA/ESA Hubble Space Telescope and covers a portion of the southern field of GOODS. This is a large galaxy census, a deep-sky study by several observatories to trace the formation and evolution of galaxies.

Name: GOODS South Field
Type: Early Universe : Cosmology
Category: CosmologyGalaxies
Constellation: Fornax
Release date: 13 October 2016, 16:00
Credit: NASA, ESA/Hubble