Three moons and their shadows parade across Jupiter — beginning of event: This new NASA/ESA Hubble Space Telescope image captures a rare occurrence as three of Jupiter’s largest moons parade across the giant gas planet’s banded face. The image shows the Hubble observation at the beginning of the event. On the left is the moon Callisto and on the right, Io. The shadows from Europa, which cannot be seen in the image, Callisto and Io are strung out from left to right. The movement of the moons is shown in the video created from Hubble stills and an annotated version is also available.

Name: Callisto, Europa, Io, Jupiter
Type: Solar System : Planet : Satellite
Category: Solar System
Release date: 5 February 2015, 16:00
Credit: NASA, ESA, Hubble Heritage Team

Three moons and their shadows parade across Jupiter — beginning of event, annotated: This new NASA/ESA Hubble Space Telescope image captures a rare occurrence as three of Jupiter’s largest moons parade across the giant gas planet’s banded face. The image shows the Hubble observation at the beginning of the event. On the left is the moon Callisto and on the right, Io. The shadows from Europa, which cannot be seen in the image, Callisto and Io are strung out from left to right. The movement of the moons is shown in the video created from Hubble stills.

Name: Callisto, Europa, Io, Jupiter
Type: Solar System : Planet : Satellite
Category: Solar System
Release date: 5 February 2015, 16:00
Credit: NASA, ESA, Hubble Heritage Team

Three moons and their shadows parade across Jupiter — end of event: This new NASA/ESA Hubble Space Telescope image captures a rare occurrence as three of Jupiter’s largest moons parade across the giant gas planet’s banded face. The image shows the end of the event. Europa has entered the frame at lower left with slower-moving Callisto above and to the right of it. Meanwhile Io — which orbits significantly closer to Jupiter — is approaching the eastern limb of the planet. The movement of the moons is shown in the video created from Hubble stills and an annotated version is also available.

Name: Callisto, Europa, Io, Jupiter
Type: Solar System : Planet : Satellite
Category: Solar System
Release date: 5 February 2015, 16:00
Credit: NASA, ESA, Hubble Heritage Team

Three moons and their shadows parade across Jupiter — end of event, annotated: This new NASA/ESA Hubble Space Telescope image captures a rare occurrence as three of Jupiter’s largest moons parade across the giant gas planet’s banded face. The image shows the end of the event. Europa has entered the frame at lower left with slower-moving Callisto above and to the right of it. Meanwhile Io — which orbits significantly closer to Jupiter — is approaching the eastern limb of the planet. The movement of the moons is shown in the video created from Hubble stills.

Name: Callisto, Europa, Io, Jupiter
Type: Solar System : Planet : Satellite
Category: Solar System
Release date: 5 February 2015, 16:00
Credit: NASA, ESA, Hubble Heritage Team

Galaxy cluster MACS j1149.5+223 and a supernova four times over: This image shows the huge galaxy cluster MACS J1149+2223, whose light took over 5 billion years to reach us. The huge mass of the cluster and one of the galaxies within it is bending the light from a supernova behind them and creating four separate images of it. The light has been magnified and distorted due to gravitational lensing and as a result the images are arranged around the elliptical galaxy in a formation known as an Einstein cross. A close-up of the Einstein cross is shown in the inset.

Name: MACS J1149+2223
Type: Early Universe : Star : Evolutionary Stage : SupernovaEarly Universe : Galaxy : Grouping : Cluster
Category: GalaxiesStars
Release date: 5 March 2015, 20:00
Credit: NASA, ESA, S. Rodney (John Hopkins University, USA) and the FrontierSN team; T. Treu (University of California Los Angeles, USA), P. Kelly (University of California Berkeley, USA) and the GLASS team; J. Lotz (STScI) and the Frontier Fields team; M. Postman (STScI) and the CLASH team; and Z. Levay (STScI)

Galaxy cluster MACS j1149.5+223: This image shows the huge galaxy cluster MACS J1149.5+223, whose light took over 5 billion years to reach us. The huge mass of the cluster is bending the light from more distant objects. The light from these objects has been magnified and distorted due to gravitational lensing. The same effect is creating multiple images of the same distant objects.

Name: MACS J1149+2223
Type: Early Universe : Star : Evolutionary Stage : SupernovaEarly Universe : Galaxy : Grouping : Cluster
Category: GalaxiesStars
Constellation: Leo
Release date: 5 March 2015, 20:00
Credit: NASA, ESA, S. Rodney (John Hopkins University, USA) and the FrontierSN team; T. Treu (University of California Los Angeles, USA), P. Kelly (University of California Berkeley, USA) and the GLASS team; J. Lotz (STScI) and the Frontier Fields team; M. Postman (STScI) and the CLASH team; and Z. Levay (STScI)