The Omega Centauri cluster. NASA, ESA, and the Hubble SM4 ERO Team

The Alpha and The Omega (Centauri) of Habitable Planets

Finding out if there is life in the Universe is far from easy and even the preliminary steps are full of uncertainties. Planetary scientists don’t completely agree on what...

Why Does The Moon Go Red During An Eclipse?

I know why the moon goes red during a total eclipse. But why does it not go red until near totality? Phil, London This is actually a very interesting question, with...

What Would Happen If The Sun Disappeared ? – AGAIN!

In a previous post, I discussed how long the Earth would be able to survive without the Sun. We had to assume that our star would magically disappear into...
Artist’s impression of the merger of two neutron stars. Credit: University of Warwick/Mark Garlick

Gravitational Waves Were Used To Look Inside Neutron Stars

Last October, scientists witnessed the first neutron star collision thanks to gravitational wave observations and the subsequent use of regular telescopes. Those observations were the first step towards a...

Seeing Steve – Observing the new Aurora phenomenon 

As you might have seen in a previous post, I was recently in the Arctic circle and was lucky enough to enjoy the natural spectacle of the Aurora borealis!...

R.I.P. Stephen Hawking

Hawking's 'The Universe In a Nutshell' was one of the first astronomy books that I read. It was a revelation and it solidified in me the desire to become...

What Would Happen To The Earth If The Sun Would Disappear?

The Sun is responsible for all life on Earth and most of our planet's means of energy production depends on the Sun. We are told that without it we...