Tag: universe
Oct 15th: What Is The Shape Of The Universe?
Some of the biggest questions in the universe depend on its shape. Is it curved? Is it flat? Is it open?
Oct 3rd: Awesome Astronomy October Sky Guide & News
Sep 28th: Your Place in the Universe: Understanding Our Big, Messy Existence
Sep 6th: Cosmic Crossroads
Aug 25th: Do We Live in a Special Part of the Universe?
In ancient times, astronomers and philosophers thought that the Earth was the center of the Universe. We know that’s wrong, but is there anything special about where we live?
Aug 13th: How Old is the Universe?
Aug 7th: Why do we need cosmic inflation? (Part 1)
What are some weaknesses with the standard Big Bang model? What are the horizon and flatness problems? How does accelerated expansion solve these?
Jul 26th: The Heart Of The Galaxy
Jul 17th: How does dark energy accelerate the universe?
What is the cosmological constant? How is the expansion of the universe related to quantum fields? How does a vacuum energy produce accelerated expansion?