Mars' ionosphere shaped by crustal magnetic fields
Thu, 03 Nov 2016 08:04:00 UT
Follow the Gaia 2016 Data Release #1 Workshop live
Scattered pockets of magnetism across the surface of Mars have a significant influence on the planet's upper atmosphere, according to observations from ESA's Mars Express. Understanding these effects may be crucial for ensuring safe radio communications between Mars and Earth and, eventually, between explorers on the surface of the planet.
Fri, 28 Oct 2016 10:46:00 UT
Gaia spies two temporarily magnified stars
On 2-4 November, the European Space Astronomy Centre near Madrid, Spain, will host the Gaia 2016 Data Release #1 Workshop. Many of the talks will be broadcast live.
Thu, 27 Oct 2016 14:53:00 UT
Next step towards a gravitational-wave observatory in space
While scanning the sky to measure the position of over one billion stars in our Galaxy, ESA's Gaia satellite has detected two rare instances of stars whose light was temporarily boosted by other celestial objects passing across their lines of sight. One of these stars is expected to brighten again soon. Gaia's measurements will be instrumental to learn more about the nature of these 'cosmic magnifying glasses'.
Tue, 25 Oct 2016 14:23:00 UT
Observable Universe contains ten times more galaxies than previously thought [heic1620]
Today, ESA has invited European scientists to propose concepts for the third large mission in its science programme, to study the gravitational Universe.
Thu, 13 Oct 2016 15:00:00 UT
CometWatch from Kepler
Astronomers using data from the NASA/ESA Hubble Space Telescopes and other telescopes have performed an accurate census of the number of galaxies in the Universe. The group came to the surprising conclusion that there are at least 10 times as many galaxies in the observable Universe as previously thought. The results have clear implications for our understanding of galaxy formation, and also help solve an ancient astronomical paradox – why is the sky dark at night?
Fri, 07 Oct 2016 17:48:00 UT
The LISA Pathfinder Science Archive is online
During the last month of Rosetta's operations at Comet 67P/Churyumov-Gerasimenko, it was no longer possible to observe the comet with telescopes on Earth because it was too close to the Sun's position in the sky and therefore not visible in the night-time. Fortunately, NASA's Kepler space observatory stepped in, taking images of the comet every 30 minutes from 7 to 20 September, providing important context to Rosetta's in situ measurements.
Fri, 07 Oct 2016 10:24:00 UT
Mission complete: Rosetta’s journey ends in daring descent to comet
Today, ESA's LISA Pathfinder Science Archive opens its virtual gates to the world. It contains data collected by the satellite during the mission's first few months, covering the nominal operations phase of the LISA Technology Package (LTP) – the European payload on LISA Pathfinder.
Fri, 30 Sep 2016 11:19:00 UT
Cosmic explosions: the first ESA–Ars Electronica residency
ESA’s historic Rosetta mission has concluded as planned, with the controlled impact onto the comet it had been investigating for more than two years.
Wed, 03 Aug 2016 10:48:00 UT
Aoife van Linden Tol, an artist working primarily with explosive media, is the recipient of the first art&science@ESA residency, organised by Ars Electronica in partnership with ESA.
Copyright 1999-2016 ESA