Physical cosmology also tells you what sort of structures you expect to find in the Universe. You can start with an almost-homogeneous Universe, but one that has density ...

Does the universe have physical boundaries? This question was originally answered on Quora by Viktor T. Toth. ... This is one of the most commonly seen misunderstandings about physical cosmology.

The camera already captured millions of galaxies and stars, as well as thousands of asteroids in initial test observations.

What's the geometry of our Universe, and how much dark energy is out there? By … ...

It is Nobel prize week and four physicists have received a telephone call from Stockholm. In this installment of the Physics World Weekly podcast we chat about James Peebles, who shared one half of ...

In physical cosmology, dark energy is a hypothetical form of energy that permeates all of space and tends to increase the rate of expansion of the universe. Assuming the existence of dark energy ...

According to the Cosmological Principle, a fundamental part of physical cosmology, the universe should look uniform in all directions, for any observer anywhere within it.