Quel est la distance de l'univers ?

Quel est la distance de l'univers ?

D'après le modèle cosmologique en vigueur, ses confins se situeraient en fait aujourd'hui à 45 milliards d'années-lumière, faisant de l'Univers observable une sphère centrée sur la Terre de 45 milliards d'années-lumière de rayon - soit 450 000 milliards de milliards de kilomètres.

Comment calculer la distance d'une galaxie ?

La distance d'une galaxie est alors simplement D = v/H0 où H0 est la constante de Hubble. Pour des décalages spectraux plus grands, il faut appliquer des formules prenant en compte la relativité d'Einstein. Relation entre la vitesse de récession d'une galaxie et sa distance, maintenant appelée loi de Hubble.

What is distancedistant worlds?

• Distant Worlds is a vast, pausable real-time 4X space strategy game. Experience the full depth and detail of turn-based strategy, but with the simplicity and ease of real-time, and on the scale of a massively-multiplayer online game. Vast galaxies are made to order: up to 1400 star systems, with up to 50,000 planets, moons and asteroids.

How far away are the most distant objects in the universe?

• Distance Information. Some of the most newly detected objects may be over 13 billion light years away, as derived from a standard model of the Universe. However, a powerful new generation of telescopes, like the James Webb Space Telescope, will be needed to confirm the suspected distances of these objects.

What is Catholic Distance University?

• The mission of Catholic Distance University is to communicate the mind and heart of the Church in a digital world. Using distance education, the university educates teachers and learners worldwide in Catholic theology, the liberal arts, and faith development for the growth of faith, ecclesial service, and leadership for the New Evangelization.

Is the universe infinitely large?

• No one knows if the universe is infinitely large, or even if ours is the only universe that exists. And other parts of the universe, very far away, might be quite different from the universe closer to home. Future NASA missions will continue to search for clues to the ultimate size and scale of our cosmic home.