Would I survive a nuclear attack on London by hiding under my mattress?

Last night I had a nightmare that the centre of London was nuked. In my half-sleep state I tried working out if I could survive just by getting under my mattress or if I...

All The Planets Can Fit Between The Earth and The Moon

Although planets are huge compared to our Earth, most illustrations show them deceptively large in proportion to astronomical distances. One of my favourite pieces of information is that all the planets would fit between the...

The most dangerous club in the Universe

What would a planet orbiting a pulsar look like from the ground? Would it look like a giant disco planet with a constant strobe light? Pulsar form from supernova explosions, and they are neutron stars...

Stars of the Future

If the universe continues expanding forever, how long until it's too diffused to allow star formation? How many generations of stars will that mean the universe has? How will the elemental make-up of these...

“The Stars Were Aligned”

Sometimes inspiration strikes in unusual ways at unusual times. I was tagged in a quote tweet where Prof Peter Coles states that as an astrophysicist he must contest Prince Harry's statement that "the stars...

PodcAstroholic – Gravity & Discs

In this PodcAstroholic we answer the question, if gravity tends to form spheres why are some galaxies shaped like discs?

PodcAstroholic – Why Is Pluto Not A Planet?

In this PodcAstroholic we answer the question "Why is Pluto not a planet?" Longer discussion in the vlog

PodcAstroholic – Life On Other Planets

60 In this PodcAstroholic we talk about the likelihood of life on other planets

How big is the biggest galaxy in the Universe?

If by big we mean physical dimension, the largest known galaxy is most likely IC1101. IC1101 is gargantuan even among galaxies; it's a super elliptical galaxy with a diffuse stellar halo that to extends to at...
Credit: Wikicommon

How hot or not is a Black Hole?

Short Answer - the temperature of a black hole is inversely proportional to its mass. For a black hole with the same mass as our Sun the temperature is 60 billionths of a degree kelvin.


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