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Published on 8 March 2013

The new definition of the astronomical unit: exactly 149 597 870 700m

At its general assembly, held in Peking from the 20t to the 31st of August 2012, the International Astronomical Union (IAU) adopted a new definition of the...
Published on 20 December 2012

Solar flares energy : no apocalypse

Six times the energy of the most violent anger ever heard from the Sun… This is 10 million times the electricity consumed during a year in the world… and 3...
Published on 30 November 2012

A comet belt around the planetary system of the red dwarf star GJ581

Using ESA’s Herschel space telescope , astronomers have uncovered a ring of debris around the red dwarf GJ581. This star, 20 light years from us, is already...
Published on 23 November 2012

The discovery of a new interstellar molecule confirms that there is a petrol refinery in our galaxy

An international team of scientists has detected a new interstellar molecule right in our galaxy. This hydrocarbon cation, C3H+, is a member of the family...
Published on 21 November 2012

The dwarf planet Makemake has no atmosphere !

An international observing campaign carried out in Latin America by, among others, nine scientists from the Paris Observatory, the Pierre et Marie Curie...
Published on 9 October 2012

The Observatoire de Paris is participating in the Fête de la science 2012

A major astronomical research center, the Observatoire de Paris, is taking part in the Fête de la science and will open its doors to the public on Saturday...
Published on 11 September 2012

European heritage days The Observatoire de Paris opens its doors

As always, the Observatoire de Paris, an important astrophysics research centre, will be participating in the European heritage days, and will allow the...
Published on 6 July 2012

On the outside of the International Space Station, vegetable seeds survive

Seeds can survive being in space, especially if they are protected from UV light. That is the conclusion of three French scientists from the INRA and from...
Published on 26 June 2012

Addition of a leap second

During the night of June 30th to July 1st 2012, just before 0h 00min 00s UTC, an extra second was added to civil time world-wide. In France, in view of...
Published on 15 May 2012

5th-6th June 2012: transit of Venus in front of the Sun. A new instrument. A french scientific expedition

This will be the last time this century. Between the 5th and 6th of June, 2012, the planet Venus will transit in front of the Sun. This is a rare...