Ariane 5 G
FailureCluster · Arianespace
Either the launch vehicle did not reach orbit, or the payload(s) failed to separate.
A constellation of four ESA spacecraft. These were intended to fly in a tetrahedral formation, and was inteded to conduct research into the Earth's magnetosphere.
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NASA’s James Webb Space Telescope takes us 4.4 billion years in the past with this July 3, 2026, image of a young galaxy cluster, MACS J0553.4-3342. The cluster is composed of two actively merging sub-clusters, roughly equal in mass. Each sub-cluster is anchored on an immensely bright and massive elliptical galaxy, easily identifiable as the […]
Astronomers using archival data from Hubble and supportive observations from Webb have located their first stellar-mass black hole in the star cluster Omega Centauri.
His Majesty King Charles III visited the UK’s largest space cluster on 10 July to launch a new initiative designed to shape the future of the space and defence economy.
This image from NASA’s Hubble Space Telescope showcases Messier 3 (M3), one of the Milky Way galaxy’s most massive globular clusters, or spherical collections of gravitationally bound stars. Globular clusters are made up of ancient stars that formed at roughly the same time from the same cloud of gas, giving those stars similar ages. Around 150 known globular clusters are […]
More than 500,000 stars blaze red, white, and blue in this NASA Hubble image of the globular cluster Messier 3 (M3).
This image released on June 26, 2026, features the globular cluster NGC 6723, sometimes called the Chandelier Cluster. Like its namesake, it sparkles with countless lights. However, each ‘lightbulb’ in this chandelier is an individual star 27,000 light-years away in the constellation Sagittarius (the Archer). Globular clusters like NGC 6723 contain some of the oldest […]
The subject of today’s NASA/ESA Hubble Space Telescope image is an ancient inhabitant of our galaxy. This sparkling scene features a globular cluster: a collection of tens of thousands to millions of stars, all tightly bound together under the influence of gravity. There are more than 150 globular clusters in our galaxy, though there may be […]
This NASA Hubble Space Telescope image features a galaxy cluster, called CL0016+1609 or MACS J0018.5+1626, that is very bright at X-ray wavelengths and is one of the most extensively studied clusters at X-ray and radio wavelengths. The X-ray observations of this cluster revealed that it is two clusters merging along our line of sight. Researchers […]
Looking somewhat like a swarm of bees returning to their hive, this NASA Hubble Space Telescope image released on June 12, 2026, features the galaxy cluster MACS0329-0211. Galaxy clusters like MACS0329-0211 are important signposts in the story of how the structure of the universe evolved, and are the ultimate telescopic lenses, placing gravitationally lensed galaxies from the […]
Researchers using two of humanity’s most powerful observatories — NASA’s James Webb and Hubble Space Telescopes — have definitively shown that Terzan 5 is not a globular star cluster as it was once classified, offering new insight into how galaxies like our own form and evolve over time. A globular star cluster typically has only […]
Researchers have confirmed a new class of objects within our Milky Way galaxy: survivors called 'bulge fossil fragments.' Terzan 5 is the prototype of these remnants of our galaxy's early formation. Using the NASA/ESA/CSA James Webb Space Telescope and the NASA/ESA Hubble Space Telescopes researchers have shown that Terzan 5 is not a globular star cluster as it was once classified. Instead, it is something much odder and rarer.
Looking somewhat like a swarm of bees returning to their hive, this NASA Hubble Space Telescope image features the galaxy cluster MACS0329-0211.