Gravitational Waves

On the 11th of February 2016, the Laser Interferometer Gravitational Wave Observatory (LIGO) announced that they had detected the first evidence of the existence of gravitational waves the previous September. At the time this was a massive triumph for the team that observed them and made headlines worldwide. So what are gravitational waves? In 1916, … Continue reading Gravitational Waves

The Constellation Sagittarius

Sagittarius lies at the centre of the galaxy and is represented in mythology as a Centaur pulling back a bow. From the northern hemisphere, the brighter stars are easily recognised from an asterism known as the teapot. The brightest star in Sagittarius is Epsilon, a rapidly spinning binary star. At 143 light years from us, … Continue reading The Constellation Sagittarius

The Constellation Cancer

Cancer, also known as "the dark sign", is a medium sized constellation surrounded by Gemini to the West, Leo, Canis Minor and Hydra. The Brightest star in Cancer is Beta Cancri which only has an apparent magnitude of 3.5. So it's brightest star isn't overly bright and neither are the rest of them hence the … Continue reading The Constellation Cancer

The Constellation Gemini.

Gemini, known as the "Heavenly Twins", is one of the easiest constellations to recognise with over 80 stars visible without a telescope. For astronomy it is one of the most examined constellations due to its diversity. It is rich with various types of stars, galaxies, meteor showers and planetary nebulae. In Greek mythology, Castor was … Continue reading The Constellation Gemini.

Will The Universe Expand Forever?

Will the Universe expand forever? A frequently asked question in the comments on the website. I touched on this in the past during the cosmology and dark energy topics covered in previous posts but it certainly deserves a post in its own right. Cosmology deals largely with the universe as a whole considering all the … Continue reading Will The Universe Expand Forever?

White Holes

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

Six Impossible Things Before Breakfast – The Physics of Alice in Wonderland

Around the middle of the 19th century, mathematics was undergoing a revolution. Certain Classical notions were being overturned and in their place, something altogether stranger was beginning to appear. Where previously it had been based around observations in reality, maths was now becoming its own language which it was hoped could describe and even anticipate … Continue reading Six Impossible Things Before Breakfast – The Physics of Alice in Wonderland