We don’t know and will likely never know what happened before the Big Bang, but Chris is curious about it, so we take a journey in the land before time and space!
On the 4th of February a paper was published detailing a Universe that didn’t need a Big Bang. While it is very interesting (you can read it here) I find myself once again at odds with how theoretical papers are formulated.
The paper details a mathematical robust way to solve many cosmological conundrums. The flatness problem (discussed in this vlog), the value of dark energy and the nature of dark matter.
The Universe coming out of the cosmic dark ages was a bleak place. The afterglow of the Big Bang had slipped into infrared radiation and neutral hydrogen was a mist stretching the entire cosmos. But as we learnt, stars soon started shining, piercing and breaking that mist giving way to the Epoch of Reionisation.
The Universe began 13.8 billion years ago in an event called the Big Bang. Throughout its ages the universe has changed a lot, sometimes dramatically, so to appreciate these changes I’m going to discuss the History of the Universe in 10 Features. My first feature is the theory of cosmic inflation.
It was announced on Monday that the Background Imaging of Cosmic Extragalactic Polarisation 2 (BICEP2 – don’t you love projects acronyms?) experiment at the South Pole found a special pattern in the cosmic microwave background (CMB). The pattern they found is the B-mode polarisation signal in the CMB. Waves that can oscillate in more than one orientation […]