The news has been dominated by the war of words between US President Donald Trump and North Korean Supreme Leader Kim Jong Un. North Korea has been criticised by the international community for testing nuclear weapons in recent years, prompting Donald Trump to play the most dangerous game of "poke the bear" mankind has ever … Continue reading Nuclear Winter
At the instant of the Big Bang, the universe began its inflation. Expanding outwards in all directions faster than the speed of light before cooling and forming all the bodies we can observe now. For decades it was assumed that the velocity and distribution of galaxy clusters should be pretty even across the universe with … Continue reading Dark Flow
A year is 365 days, one full orbit around the Sun. A day is one full turn on the Earth's rotational axis. So what would happen if the Earth's rotation just suddenly stopped? If the Earth stood still suddenly, everything not attached to the crust of the Earth would just be swept up into the … Continue reading The Day The Earth Stands Still
In the mathematics of Einstein's Theory of Relativity, black holes are predicted and astronomers have proven beyond all doubt that they exist. The centre of our own galaxy harbours one of these monstrosities and so do nearly all galaxies observed. In the same mathematical models which predict black holes, there are predictions for entities which … Continue reading White Holes
On a clear night with the naked eye, we see what we believe to be stars scattered in every direction across the sky. With binoculars or a small telescope, we can see some of these "stars" are not actually stars at all but star forming regions. The prettiest of these is also our nearest, the … Continue reading The Orion Nebula
There are mathematical models that the Universe is infinite in shape and size. Although infinite, the technology of mankind certainly does have a limit. The most distant object observed is a small galaxy, gn-z11. Not a very interesting name but it definitely is one of the most fascinating objects in the cosmos. Due to extreme … Continue reading The Most Distant Galaxy In The Universe
Black holes seem to have captured the imagination more so than all other cosmic bodies or phenomena. Blockbusters like Interstellar and Event Horizon have certainly increased the profile of black holes and worm holes. With a captured imagination comes misconceptions and inaccuracies. To begin, most physicists believe black holes aren't even holes at all! Black … Continue reading If The Sun Suddenly Collapsed into a Black Hole.
The Northern Lights, polar lights or Aurora Borealis is one of the most beautiful sights Nature has to offer. The Aurora Borealis name was coined by Galileo from the Roman Goddess of the dawn and the Greek name for the North wind. The Aurora can be viewed in a band called The Auroral Zone between … Continue reading The Aurora
Cosmologists have been debating the shape of the universe for decades. From simple observation we know the spherical shape of Earth, stars and other celestial bodies. Although, what shape is the entire universe the galaxies are embedded in? In cosmology, a difference is made between the observable universe and the global universe. As the name … Continue reading The Shape of The Universe.
Where is the edge of the universe? Most importantly, what happens if we try to get there? Let's state the obvious, surely there can be no edge to our universe if the universe is infinite. On the other hand, how can it be part of our universe if we can't interact with it? After all, … Continue reading The Edge of The Universe.
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