News archive

News archive

The first all-sky survey of galaxy clusters detected via the Sunyaev-Zel'dovich effect is amongst the highlights presented by the Planck Collaboration at a conference held from 10 to 14 January 2011 in Paris, France. The survey, which has benefited from a fruitful collaboration with ESA's XMM-Newton observatory, probes a wide range of cluster masses and other properties, which is unprecedented for a Sunyaev-Zel'dovich sample. Along with the first results enabled by the survey, the Early Sunyaev-Zel'dovich Cluster sample is being publicly released, providing the community with a robust data set for further studies and follow-up observations of galaxy clusters.
Published: 11 January 2011
While targeting the Cosmic Microwave Background, Planck has also captured another important diffuse radiation, the Cosmic Infrared Background, which consists of the light emitted by all galaxies since their formation. This signal, detected by Planck at submillimetre wavelengths, exhibits a high degree of structure and enables astronomers to investigate the still unclear link between star-forming galaxies and the underlying distribution of dark matter, up to the earliest phases of the formation of cosmic structure. This result is amongst the highlights presented by the Planck Collaboration at a conference held from 10 to 14 January 2011 in Paris, France.
Published: 11 January 2011
With its power to detect cosmic material at unprecedentedly low temperatures, Planck has completed the first unbiased, all-sky survey of compact cold and dusty objects in the Milky Way and, at the same time, the first all-sky survey of cool dust in other galaxies.
Published: 11 January 2011
A strange, glowing green cloud of gas that has mystified astronomers since its discovery in 2007 has been studied by Hubble. The cloud of gas is lit up by the bright light of a nearby quasar, and shows signs of ongoing star formation.
Published: 10 January 2011
[07/01/2011]
European scientists have used observations from ESA's Cluster and Venus Express spacecraft to improve models of the interaction of Earth and Venus with the solar wind. This has implications for understanding the effects of charged particles on orbiting spacecraft.
Published: 7 January 2011
ESA's PROBA2 microsatellite experienced a conjunction of the spheres on Tuesday, as the Sun, Moon and Earth all lined up in front of it.
Published: 6 January 2011
Two ESA observatories have combined forces to show the Andromeda Galaxy (M31) in a new light. Herschel sees rings of star formation in the most detailed image of M31 ever taken at far-infrared wavelengths, and XMM-Newton shows X-rays from dying stars.
Published: 5 January 2011
A recent study concludes that galactic mergers do not usually whet the appetite of the black holes that power these active galactic nuclei.
Published: 5 January 2011
Two ESA observatories have combined forces to show the Andromeda Galaxy (M31) in a new light. Herschel sees rings of star formation in the most detailed image of M31 ever taken at far-infrared wavelengths, and XMM-Newton shows X-rays from dying stars.
Published: 5 January 2011
The Space Telescope European Co-ordinating Facility, a unique collaboration between the European Space Agency (ESA) and the European Southern Observatory, will close on 31 December 2010 after 26 years. ESA's continuing partnership with NASA on the Hubble mission ensures that European astronomers will continue to have access to observing time.
Published: 17 December 2010
Hubble has spotted a festive bauble of gas in our neighbouring galaxy, the Large Magellanic Cloud. Formed in the aftermath of a supernova explosion that took place four centuries ago, this sphere of gas has been snapped in a series of observations made between 2006 and 2010.
Published: 14 December 2010
ESA has released interactive, open-source software that gives both scientists and the public an unprecedented insight into the ever-changing face of the Sun.
Published: 14 December 2010
A mysterious high-altitude layer of sulphur dioxide discovered by ESA's Venus Express has been explained. As well as telling us more about Venus, it could be sending a warning to those on Earth seeking to inject our atmosphere with sulphur droplets in an attempt to mitigate climate change.
Published: 30 November 2010
The Cassini-Huygens mission has detected a very tenuous atmosphere known as an exosphere, infused with oxygen and carbon dioxide around Saturn's icy moon Rhea.
Published: 26 November 2010
Astronomers have exploited the radioactive decay of an isotope of aluminium to estimate the age of stars in the nearby Scorpius-Centaurus association, the closest group of young and massive stars to the Sun.
Published: 26 November 2010
Another milestone in the development of ESA's Gaia spacecraft has been passed with the successful conclusion of two parallel test programmes during October, which demonstrated that the focal plane assembly is structurally and functionally fit for flight.
Published: 23 November 2010
ESA has decided to extend the productive lives of 11 of its operating space science missions. This will enable ESA's world-class science missions to continue returning pioneering results until at least 2014.
Published: 22 November 2010
Observing the X-ray-bright gas in the halo of the Milky Way, ESA's XMM-Newton has gathered new data which favour a process involving fountains of hot gas in our Galaxy.
Published: 19 November 2010
Astronomers using early data from one of the largest projects to be undertaken with Herschel have demonstrated that virtually all bright sub-millimetre galaxies in the distant Universe are subject to gravitational lensing.
Published: 4 November 2010
A European Roadmap for Exoplanets, a report from the ESA-appointed Exoplanet Roadmap Advisory Team (EPR-AT), is now available. The roadmap looks at the future of the field and how to reach the ultimate, long-term goal: finding an Earth-like planet with possible signatures of life.
Published: 28 October 2010
23-Nov-2020 17:10 UT

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