Terraforming Venus

Terraforming is the process of changing the global environment of a planet  in such a way as to make it suitable for human habitation. Because it is so far beyond our current technological capabilities, most articles about terraforming have been written by science fiction writers rather than scientists.  For example, there is  an entry for a terraformed… Continue reading Terraforming Venus

Living on Venus

In this post I'll look into the distant future and talk about humans living and building settlements on the planet Venus. Because it is well beyond what we can achieve with our current technology, it is a topic that been more in the realm of science fiction rather than factual scientific writing. However, even though there are many difficult obstacles in… Continue reading Living on Venus

The Future of humanity

As described in my previous post (The Future of the Sun), in about 5 billion years time the Sun will swell up to at least 100 times its current diameter and this will make the surface of the Earth far too hot to sustain life. What Sunrise might look like when the Sun is a red… Continue reading The Future of humanity

Artefacts From Earth

This is the final post in a series about human efforts to contact extraterrestrials.  Today I want to discuss the objects which have already been sent out into interstellar space in the hope that at some point in the distant future an alien civilisation will retrieve and decipher them. The Pioneer Plaque On 3 March 1972 Pioneer… Continue reading Artefacts From Earth

SETI

As I discussed in my last post, the search for signs of extraterrestrial life has caught the interest of many people for a very long time, and the specific search for signals from other life forms has been a particular source of fascination over the last 50 years. In the 1997 movie Contact Jodie Foster's… Continue reading SETI