Astrochemistry and Origins

Interstellar Matter and Cosmology

Stellar and Solar Physics

Solar and Planetary Systems

Latest News

5 years 7 months ago

Don Hassler became the new director of the Institut d’Astrophysique Spatiale (IAS), on February 1st, 2014 for a 5-year term, succeeding Yves Langevin, who remains director of the Observatoire des Sciences de l’Univers de l’Université Paris-Sud (OSUPS). Don Hassler was previously science program director at Southwest Research Institute (SwRI) in Boulder, Colorado, USA.

 

5 years 8 months ago
After a 31 months hibernation phase, the ROSETTA spacecraft has woken up as scheduled on January 20th. After this critical milestone, the spacecraft will progressively get closer to the comet, then it will get into orbit (end of June) so as to map it and to select a landing site for the Philae lander, which will reach the surface of the nucleus in November. IAS has contributed to 3 experiments on board the orbiter and the lander.

 

5 years 10 months ago
Mars is a volcanic world, covered nearly entirely in basaltic rocks. While the planet's geological history remains elusive for lack of in-situ samples or probes of its internal structure, its uniform surface composition was thought to result from an unremarkable magmatic history. However, this is questioned by a recent study lead by ESO and IAS, which has revealed a new rock type on Mars.
 
 
5 years 11 months ago

Since the 14th of August, the Planck satellite has departed from its observing orbit. This was the first of a series of steps followed by the switching off, on the 19th of October, of the science instruments on board: HFI (High Frequency Instrument) and LFI (Low Frequency Instrument). On Wednesday the 23rd of October, that is 1624 days after launch, communication with the Planck satellite ceased.

 

6 years 1 week ago

After 1,554 days in space, the Planck satellite has completed its observations on 14 August 14th, 2013. If the high frequency instrument HFI stopped operating on January 14th, 2012, the low frequency instrument LFI was able to work around an additional 600 days as its operating temperature is much higher than HFI. There remains to "park" the satellite in the solar system before saying goodbye.

 

 

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