A simple explanation of the size of the universe, how the universe grew so big and how big it will get.
Nov 24th: How Big is the Universe?
Tag: universe
Oct 27th: Observed: It’s a Star-Eat-Star Universe
While astronomers have observed white dwarfs consuming companion stars on numerous occasions, for the first time, they have now observed the consumption of the companion’s helium and not just hydrogen.
Sep 13th: Fermi Bubbles of Milky Way Galaxy
In 2010, gamma ray observations by Fermi Space Telescope revealed an unknown mysterious structure of our home galaxy Milky Way later known as Fermi Bubbles.
Aug 29th: The End of Everything
Last week we make you sad about the future of the humanity, the Earth, the Sun and the Solar System. Today we’ll look far, far forward into the distant future of the Universe, at timescales that we can barely comprehend.
Aug 23rd: Questioning Assumptions
Don’t presume to assume. Did the Universe really start from a single point? How unusual is the Earth? Let’s explore the answer with @CheapAstro at #365DaysOfAstro
Aug 1st: Multiverses
What if our Universe was just one in an infinite number of parallel universes; a possible outcome from the specific predictions of quantum mechanics. The idea of multiple universes is common in science fiction, but is there any actual science to back this theory up?
Mar 21st: Jets: When Magnetic Fields Fling Things
As astronomers look out across the Universe. They see various objects spewing jets of material light years into space. What causes these jets? And what impact do they have on the Universe?
Mar 15th: What Are Some Alternatives to the Big Bang Theory?
What makes the Big Bang theory so successful? How were alternatives ruled out? What are the electric universe and steady state theories? Do any other options remain, like conformal cyclic cosmology?
Nov 13th: Resolving A Discrepancy In The Hubble Constant
The Hubble Constant tells us how fast the universe is expanding. However, different methods of measuring the Hubble Constant give different results. In this podcast, NOIRLab’s John Blakeslee describes data his team has collected to help resolve this discrepancy.
Nov 2nd: Will Our Universe End in a False Vacuum Decay?
What is a vacuum, and what makes a false one? What happened in the early universe to bring about our current physics? Will it happen again? If so, when?