Credit: Wikicommon

Black Holes and Impossible Planets

Black holes are incredibly fascinating. They represent the unknown, the dangerous, the terrifyingly majestic. They are the modern version of the void, the abyss, the bottomless pit. Most sci-fi gets black holes right, but...
Credit: Wikicommon

Will Earth be sucked in by the Black Hole at the centre of the...

Is the supermassive black hole at the centre of the Milky Way going to eat the Earth? Ross, UK No, the Earth is not in any danger from the supermassive black hole (SMBH) at the centre...

All about the Asteroid Belt

What does it actually look like in the asteroid belt? Is it anything like as dense as is shown in films? Or is it more like you can see one or two rocks in...

Meet The Tardigrades

https://www.youtube.com/watch?v=GnYSsSEBZnE There's a creature on earth that can survive the most extreme conditions on (and thanks to humans off) the planet! It's called a tardigrade, but people also call it a “waterbear” or “moss piglet." Tardigrades are...

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...

Travelling through the cosmos

Space is big. The Voyager probe, launched in 1977 to explore Jupiter and Saturn, took 36 years to leave the Solar System. It is the furthest human object from us, and it is still...
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.
Credit: Stephen van Vuuren

Something out of Nothing

If the 1st Law of Thermodynamics is true how could the Universe begin from nothing? To answer this question we need to remember that nothing is a global term and not a local one. Vacuum states exist...

What’s the speed of Gravity?

For all intents and purposes gravity travels at the speed of light but it is very hard to measure, and so far we have no direct model-independent measurement of the speed of gravity. Physics has...

How galaxies influence planet formation

Does the specific location of a solar system within a galaxy affect the solar system's structure? Like does distance from the centre affect how big the star is, or what kind of planets form? Stuart,...

TRENDING RIGHT NOW