Cosmology

Now Available: 30 Free Lectures by Noted Astronomers

We just received a note from Andrew Franknoi and the Astronomical Society of the Pacific that they are making available,…

13 years ago

Testing the Multiverse… Observationally!

[/caption]The multiverse theory is famous for its striking imagery. Just imagine our own Universe, drifting among a veritable sea of…

13 years ago

Ancient Galaxies Fed On Gas, Not Collisions

[/caption]The traditional picture of galaxy growth is not pretty. In fact, it's a kind of cosmic cannibalism: two galaxies are…

14 years ago

Most Distant Quasar Opens Window Into Early Universe

[/caption]Astronomers have uncovered yet another clue in their quest to understand the Universe's early life: the most distant quasar ever…

14 years ago

Cosmology in the Year 1 Trillion

[/caption]Much of what is known today about the birth of the cosmos comes from astronomical observations at high redshifts. Due…

14 years ago

Examining the Great Wall

[/caption] Structure exists on nearly all scales in the universe. Matter clumps under its own gravity into planets, stars, galaxies,…

14 years ago

A New Spin on Galactic Evolution

  There's a new concept in the works regarding the evolution of galactic arms and how they move across the…

14 years ago

Did the Early Universe Have Just One Dimension?

[/caption] From a University of Buffalo press release: Did the early universe have just one spatial dimension? That's the mind-boggling…

14 years ago

Antigravity Could Replace Dark Energy as Cause of Universe’s Expansion

[/caption] Since the late 20th century, astronomers have been aware of data that suggest the universe is not only expanding,…

14 years ago

Halos Gone MAD

[/caption] One of the successes of the ΛCDM model of the universe is the ability for models to create structures…

14 years ago