What are some weaknesses with the standard Big Bang model? What are the horizon and flatness problems? How does accelerated expansion solve these?
Aug 7th: Why do we need cosmic inflation? (Part 1)
Archive | Ask A Spaceman
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?
Jul 3rd: Can Entangled Particles Communicate Faster than Light?
What is a quantum state? How can two particles share the same state? What is entanglement, and does it really allow for faster-than-light communication?
Jun 19th: What Awoke the Cosmic Dawn?
Were the dark ages really dark? What is a perturbation, and how did they grow in the early universe?
Jun 5th: How do you build a rocket-ship?
What does momentum have to do with rockets? Why are nozzles so dang important?
May 15th: What made the “OMG Particle” so special?
What is the so-called “OMG Particle”? Where could it possibly come from, and how are magnetic fields involved? How can we detect these cosmic rays?
May 1st: Seriously, What is Gravity? (Part 3)
Seriously, What is Gravity? Another story of gravity about How did Einstein develop General Relativity? What does it mean for different kinds of masses to be equivalent? How does gravity do what it does? Why is curvature so important in understanding gravity?
Apr 17th: Seriously, what is gravity?
How did Einstein develop General Relativity? What does it mean for different kinds of masses to be equivalent? How does gravity do what it does?