This is just a fun question someone asked on Quora. It leads into a few interesting topics. First the ISS just isn't heavy enough for a satellite to enter into a true gravitational orbit around…

We know that our universe has already lived through great number of exciting phases. But new research released overnight shows the universe has long passed its peak and is slowly but surely dying.…

Most people, when they think about exploring the galaxy, think about sending out human colonies. It's natural to think we would explore it just as we do the Earth, it's the only way we know. To send…

Most people, when they think about exploring the galaxy, think about sending out human colonies. It's natural to think we would explore it just as we do the Earth, it's the only way we know. And to…

Prolonged spaceflight may give you a nasty case of diarrhea, at least if you are a mouse. Specifically, when mice were subjected to simulated spaceflight conditions, the balance of bacteria and the…

What do you say to Pluto’s demotion to “dwarf planet” status?  I did not approve of the demotion, but a few days ago our BBC Sky at Night team did give a reasonable reason why it does require a…

NASA’s announcement of the discovery of a new extrasolar planet has been met with a lot of excitement. But the truth is that it is impossible to judge whether it is similar to Earth with the few…

There is so much over enthusiastic hype about this planet today, I thought could do with a bit of more sober reporting of the results, interesting though they are. Much of that speculation…

Galaxies in a cluster roughly 300 million light years from Earth could contain as much as 100 times more dark matter than visible matter, according to an Australian study. The research used computer…

A type of two-star system known as a Cataclysmic Variable, where one super dense white dwarf star is stealing gas from its companion star, effectively 'cannibalizing' it, has been found by citizen…