In our solar system, there are two basic kinds of planets- smaller, rocky terrestrials like Earth and Mars and then large gas giants like Neptune and Jupiter. Though a middle ground between those…

Kim Stanley Robinson in his famous Trilogy Red, Green and Blue Mars describes a science fiction future with Mars changing colour to green and then to blue. But what also about snowball white after a…

Kim Stanley Robinson in his famous Trilogy Red, Green and Blue Mars describes a science fiction future with Mars changing colour to green and then to blue. However there are many other colours Mars…

You can't seeit from here, but the moon is lopsided; that's because of its gravitational tug-of-war with Earth. The mutual pulling of the two bodies is powerful enough to stretch them both and they…

The slopes of a giant Martian volcano nearly twice as tall as Mount Everest, called Arsia Mons, were once covered in glacial ice and they may have been home to one of the most recent habitable…

This is something often said in discussions of Extra Terrestrials. For instance in this interview with the famous Japanese theorist Michio Kaku  "Or they could be so advanced that we would…

The structures and star populations of massive galaxies appear to change as they age, but much about how these galaxies formed and evolved remains mysterious. Many of the oldest and most massive…

Following on from Crew Tether Spin - With Final Stage - On Routine Mission To ISS - First Human Test Of Artificial Gravity?, I've got some great videos to share now, showing the Soyuz and final stage…

SETI scientist Gerry Harp writes of a "secret" experiment involving Kepler 186-f.   The senior scientist look only for a tuning fork like signal.  The least likely signal ET would send…

You may remember, a while back I talked about Joe Carroll's ingenious idea to do our first ever true experiment in a gravity tether during a routine Soyuz crew transfer to the ISS, His idea is…