ESA Science & Technology - Science Results
Science Results
Science Results
ESA's Herschel space observatory made new observations of asteroid Apophis as it approached Earth this weekend. The data shows the asteroid to be bigger than first estimated, and less reflective.
Published: 9 January 2013
How fast people age may have more to do with their lifestyle than with how old they actually are. A new study with the Hubble Space Telescope reveals that the same is true of star clusters.
Published: 19 December 2012
A long-standing puzzle of solar physics is that the solar wind is hotter than it should be. A new study of data obtained by ESA's Cluster spacecraft may help to explain this mystery.
Published: 18 December 2012
Astronomers using the NASA/ESA Hubble Space Telescope have uncovered seven primitive galaxies from a distant population that formed more than 13 billion years ago. In the process, their observations have put forward a candidate for the record for the most distant galaxy found to date (at redshift 11.9), and have shed new light on the earliest...
Published: 12 December 2012
Studying the Andromeda galaxy with XMM-Newton, astronomers have discovered a black hole accreting mass at very high rate. This allowed them to study the link between disc and jets around a black hole at the peak of its accretion activity.
Published: 12 December 2012
The largest census of starburst galaxies, with almost 800 redshift measurements, has been assembled using data from Herschel and Keck. The survey confirms the important role of starbursts in the history of the Universe's star formation.
Published: 4 December 2012
For decades, planetary scientists have debated whether Venus possesses active volcanoes. The latest twist to the tale is provided by data sent back from Venus Express, revealing unexplained major changes in the amount of sulphur dioxide gas above the planet's dense cloud layer.
Published: 2 December 2012
New observations made by the international Cassini spacecraft confirm that dramatic atmospheric reversal takes place as the seasons shift on Saturn's giant moon Titan.
Published: 28 November 2012
Astronomers using Herschel have detected massive debris discs around two nearby stars hosting low-mass planets. The discovery suggests that debris discs may survive more easily in planetary systems without very massive planets.
Published: 27 November 2012
Astronomers have discovered a 'bridge' of hot gas connecting the galaxy clusters Abell 399 and 401. At least part of this gas might derive from the warm-hot intergalactic medium - the elusive web of gaseous filaments pervading the Universe.
Published: 20 November 2012
By combining the power of the NASA/ESA Hubble Space Telescope, NASA's Spitzer Space Telescope and one of nature's zoom lenses, astronomers have found what is probably the most distant galaxy yet seen in the Universe. The object offers a peek back into a time when the Universe was only 3 percent of its present age of 13.7 billion years.
Published: 15 November 2012
High above the main body of Mars' atmosphere is a region of weakly ionised gas, known as the ionosphere. New studies, based on observations from Mars Express, show that the dayside ionosphere is more variable and more complex than previously thought.
Published: 15 November 2012
Data from INTEGRAL and XMM-Newton have helped astronomers study how neutron stars accrete mass in highly obscured X-ray binaries. The results suggest a new method to estimate the mass of neutron stars.
Published: 9 November 2012
Data from INTEGRAL and XMM-Newton have helped astronomers study how neutron stars accrete mass in highly obscured X-ray binaries. The results suggest a new method to estimate the mass of neutron stars.
Published: 9 November 2012
A giant storm whirling on Saturn for the past two years has given planetary scientists new clues about the planet's atmosphere. The study is based on infrared observations from the Cassini orbiter and ground-based telescopes.
Published: 25 October 2012
Astronomers using the NASA/ESA Hubble Space Telescope have obtained a remarkable new view of a whopper of an elliptical galaxy, with a core bigger than any seen before. There are two intriguing explanations for the puffed up core, both related to the action of one or more black holes, and the researchers have not yet been able to determine which...
Published: 25 October 2012
A new study based on data from ESA's Cluster mission shows that it is easier for the solar wind to penetrate Earth's magnetosphere than had previously been thought.
Published: 24 October 2012
Astronomers using INTEGRAL have detected the first direct signature of titanium-44 in supernova remnant 1987A. The discovery reveals large amounts of this isotope, demonstrating that its decay has been powering the source for the past 22 years.
Published: 17 October 2012
Astronomers using Hubble have studied a giant filament of dark matter in 3D for the first time. Extending 60 million light-years from one of the most massive galaxy clusters known, the filament is part of the cosmic web that constitutes the large-scale structure of the Universe.
Published: 16 October 2012
Ground- and space-based observations, including studies by ESA's XMM-Newton X-ray observatory, have provided unique insights into a star system dominated by two Galactic giants.
Published: 12 October 2012
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