Ce que l’on sait sur l’exoplanète habitable Kepler-186f
Représentation artistique de Kepler-186f avec des océans, comparée à la Terre. Artists impression of the planet with oceans, compared to the Earth.
DECRYPTAGE | Les chercheurs de la Nasa ont annoncé jeudi l’existence d’une exoplanète d’une taille équivalente à celle de la Terre. Mais qu’est-ce qu’une exoplanète ? En quoi cette découverte peut-elle changer la perception des astrophysiciens ? Est-elle survendue ?
NASA researchers have announced on Thursday the existence of an exoplanet of a type equivalent to Earth. But what is an exoplanet? Will this change the the thinking of astrophysicians?
Qu’est-ce qu’une exoplanète ?
Une exoplanète est une planète située en dehors du système solaire. Elle tourne autour d’une étoile, comme la Terre tourne autour du Soleil. La première exoplanète a été découverte en 1995, elle s’appelle Pégase 51. Depuis, 1.782 exoplanètes ont été recensées par les chercheurs.
It exists situated outside the solar system. It rotates around a Sun, like the Earth around the Sun. The first exoplanet was discovered in 1995, called Pegasus 51. Since then 1,782 exoplanets are recorded by researchers.
Pourquoi les astronomes s’intéressent-ils à ces planètes ?Why are scientists interested?
“Ca fait 4.000 ou 5.000 ans que, depuis que l’Homme a regardé le ciel, il s’est posé la question : Sommes-nous seuls dans l’univers ?“, remarque Francis Rocard, astrophysicien
Avant 1995, l’Homme n’avait connaissance que des planètes du système solaire.
“Its 4,000 or 5,000 years that man has been looking at the sky and asking the question: Are we alone in the Universe!”, remarks astrophysicist Francis Rocard. Before 1995, man had no knowledge of these planets.
About bill
Worked in the technical / engineering area as a Science Laboratory Technician and as an Aeronautics Engineer.
The artistic side involves writing under the nom de plume of Billy Olsenn, his recently written play 'A Case of Wine' was staged by the players group Straight Make-Up at the 2012 Birr one act drama festival. It's next staging was in the one act circuit is in Cavan, at Maudebawn on Sat 10 Nov 2012. Then it was performed in the Bray, Co.Wicklow at the very popular one act festival in January 2013.
Next play is FEAR. A dark tale about revenge on the cruel death of two pensioners by young thugs. Neighbours hatch a devious and dangerous plan to exact old-style revenge. Bill is a member of the Drama League of Ireland and his plays have been critically vetted and certified as original pieces of work by the DLI.
Another literary project is that of commemoration of an aircraft crash on Djouce mountain in Wicklow in 1946. Bill wrote articles for the 50th, 60th and most recently the 70th anniversary, (12 Aug
2016) all were published in the Wicklow Times and ensured the survivors of the crash, all French Girl Guides, were not forgotten. Articles reproduced on this website.
But mostly this site gives a more general European and specific French slant on popular and not so popular articles of French news, translated to English by the author. Each article is translated on a paragraph by paragraph basis so easy to read in either language and even possible to improve either language by comparison of the short English and French paragraphs. Amusez vous bien.
The author is currently writing an easy to read technical aviation book centered around the Fokker 50.
Another interest is that dealt with in another of Bill's websites www.realnamara.net, a Statue of the mother of God, Mary. It was erected in 1972 in Dublin, at the end of the Bull Wall near Clontarf, and my grandfather William Nelson, was the main instigator of that project. I give talks on the history of the statue and my grandfather's adventurous and dangerous life at sea.
Technical assistance with each website is by J O'N.
