Directeur / Éditeur: Victor Teboul, Ph.D.

Regard sur nous et ouverture sur le monde
Indépendant et neutre par rapport à toute orientation politique ou religieuse, Tolerance.ca® vise à promouvoir les grands principes démocratiques sur lesquels repose la tolérance.

Observatoire des droits humains (anglais seulement)

Astronomers Spot Oldest Known Star

(Version anglaise seulement)

An international team of astronomers has discovered the oldest known star in the universe, and it's more than twice the age of our solar system. The star is orbited by five planets, with sizes comparable to those of Mercury and Venus, but the scientists say they are too near their sun to permit habitation. Writing in the latest Astrophysical Journal, the scientists reported that the solar system most likely dates from a time near the dawn of the universe 13.8 billion years...

Lire l'article complet