NASA’s Space Telescope Swift detected a powerful Gamma Ray Burst on March 19th in the Constellation Bootes called GRB080319B. Apparently, the blast was visible to the naked eye during 20 to 40 seconds, though no one actually remarked it because gamma rays are blocked by the atmoshpere, but also because it was just on the […]

I just stumbled on an article at the Cosmology Curiosity blog which I like to read, which talked about Russel Humphreys’ White Hole Cosmology Theory, and which basically underlined its main points (Read it Here), and I felt a need to react to such a theory, given the fact that I thought it was unnacceptable […]

Welcome to the Cosmology FAQ
The purpose of this entry is to shine light on the questions I was often asked about, and that made me look like a jackass because I couldn’t answer them. I thought it would be nice to share No seriously. When my passion for astronomy started, I learned a lot of […]

You’ve read about how originally there was nothing, and then suddenly….BOOM! And how the Universe started expanding, etc… But when you think about it… What’s really expanding? Is it the galaxies that are moving away from each other? Or is it the space between the galaxies that’s stretching, making galaxies move farther and farther from […]

CMB stands for Cosmic Microwave Background Radiation. And that’s the echo of the big bang, its relic. Let me explain.
The universe was originally made up of hot photons, electrons, and other particles. When protons and electrons combined to form hydrogen because of the expansion of the universe, the photons were able to move freely through […]

Yes, yes, I know the title looks impressive!
Ok, so you’ve been reading about how the redshift explained the beginning of the universe. If we go back up in time, galaxies start to stick back up together (instead of spreading, they regroup, until they’re just a dense hot mixture of particles), and 13,7 billion […]

Did you know that there were four dimensions? We are living in a four dimensional world…all the time. And time is the fourth dimension.
It is impossible to imagine a four dimensional space. However we know it exists.
In old theories, space and time were independent from each other. In relativity however time and space cannot be […]