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Astronomy & Space Science News :

|   ESA |   Planetary.org | 


Thu, 23 Mar 2017 14:00:00 UT

Before and after: unique changes spotted on Rosetta's comet
Growing fractures, collapsing cliffs, rolling boulders and moving material burying some features on the comet's surface while exhuming others are among the remarkable changes documented during Rosetta's mission.

Collapsing cliff reveals comet's interior
Rosetta scientists have made the first compelling link between an outburst of dust and gas and the collapse of a prominent cliff, which also exposed the pristine, icy interior of the comet.

New Hubble mosaic of the Orion Nebula [heic1705]
In the search for rogue planets and failed stars astronomers using the NASA/ESA Hubble Space Telescope have created a new mosaic image of the Orion Nebula. During their survey of the famous star formation region, they found what may be the missing piece of a cosmic puzzle; the third, long-lost member of a star system that had broken apart.

ESA's Jupiter mission moves off the drawing board
Demanding electric, magnetic and power requirements, harsh radiation, and strict planetary protection rules are some of the critical issues that had to be tackled in order to move ESA's Jupiter Icy Moons Explorer – JUICE – from the drawing board and into construction.

Enceladus' south pole is warm under the frost
Over the past decade, the international Cassini mission has revealed intense activity at the southern pole of Saturn's icy moon, Enceladus, with warm fractures venting water-rich jets that hint at an underground sea. A new study, based on microwave observations of this region, shows that the moon is warmer than expected just a few metres below its icy surface. This suggests that heat is produced over a broad area in this polar region and transported under the crust, and that Enceladus' reservoir of liquid water might be lurking only a few kilometres beneath.

INTEGRAL Announcement of Opportunity (AO-15)
Proposals are solicited for observations with INTEGRAL in response to the Fifteenth Announcement of Opportunity, AO-15, issued 20 February 2017. This AO covers the period January 2018 to December 2018.

Call for nominations for the JWST user committee (JSTUC)
STScI has issued a call for expressions of interest from community members who would like to serve as members of the James Webb Space Telescope Users Committee (JSTUC). At least two members of JSTUC will be astronomers from ESA member states. The deadline for receipt of nominations is 14 February 2017.

ESA Planetary Science Archive gets a new look
Today, ESA launches a new version of its Planetary Science Archive (PSA) website, the online interface to data from the agency's space science missions that have been exploring planets, moons and other small bodies in the Solar System. With a new design and enhanced search functionalities, the platform now provides a direct and simple access to the scientific data, helping scientists to discover and explore the archive content.

Next step towards a gravitational-wave observatory in space
Today, ESA has invited European scientists to propose concepts for the third large mission in its science programme, to study the gravitational Universe.

The LISA Pathfinder Science Archive is online
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.






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