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Why Is an Atmosphere Lost over Time?

There are a lot of planetary atmospheres in the solar system. They vary a lot and this can be seen by comparing Earth and Venus which are of the same size and mass roughly, The surface of Venus is extremely hot which is caused by an atmosphere of carbon dioxide that has the weight of [...]

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A Good Year for Japan’s Space Program

Japan has not put a lot of money into their space program but it has nevertheless come up with some good results. JAXA (Japan’s space agency) has had a few firsts including the return of a probe to pick up some dust from an asteroid after a seven-year round-trip. This mission called Hayabusa, which means [...]

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An Earthlike Planet Is Coming Soon …

One day in the future perhaps not 10 years from now we will be able to look up into the night sky at particular stars and know that they have Earth like planets orbiting them. SETI is going to scan the stars with exoplanets for intelligent life in 2011 and you never know do you? [...]

News

Arsenic Life Found.

There were some wild speculations a week ago when NASA implied that they may have found some form of life. Everyone thought that this was finally it, alien life had been found. It was, unfortunately, one jump too far but the news of the discovery of an arsenic microbe is still good news. It has [...]

News

An Asteroid to Look Out For…

Asteroids and comets are flying around our solar system in all sorts of orbits and it’s only a matter of time until they hit the earth although there is rather a large amount of space that they can fly in compared to mass of the planets that they could hit. The ones that are close [...]

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How Did the Earth Get It’s Water?

How did the Earth come to possess water? Did some alien ship have too much and dump it or is there some simpler explanation? Through a process that lasted millions of years the Earth was made from a cloud of dust and gas. At the later stages of formation the Earth was an extremely hot [...]

aliens

Where Should We Look for Alien Artefacts?

There is a problem with our approach at the moment when looking for alien civilisations. SETI looks for signals that are sent by the electromagnetic spectrum and their are a lot of frequencies to search. If you pair this with the size of the universe you can see how SETI is really looking for a [...]

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Preventing Contamination from Reaching Planetary Bodies and from Contaminating the Earth

We have been looking for alien life elsewhere in the universe for quite awhile now. Mars has been the main focus of attention and it looks like in the future Europa and Titan will also attract a lot of attention. But how do we know that what we have found is alien life and that [...]

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How Did Those First Organic Molecules Get to Earth?

How did life start? You would be talking to a Nobel prize winner if I could tell you that. Unfortunately nobody knows. There are a few theories around and a few advances have been made in this field but I will talk about the one that is most widely accepted in scientific circles. The starting [...]

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Jupiter Has Another Impact

Just the other month Jupiter was hit by something, possibly an asteroid, and this month seems to be just the same. An amateur astronomer yesterday noticed a large flash when looking at Jupiter which lasted about two seconds. We are quite lucky to have Jupiter in the solar system, not just for looking at, but [...]

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Atmospheres of the Earth and terrestrial planets.

If you don’t know what an atmosphere is then I suggest you find a blog on fashion or similar. Perhaps, though, we think we know what an atmosphere is but do we really? Well, just in case it’s that thin blue line that we see around the Earth when looking at pictures that the International [...]

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How impact craters are formed

This sounds a bit like a no-brainer really; the asteroid or comet crosses the path of Earth and hits the Earth’s surface causing an impact crater. That’s it isn’t it? No, nothing in life is quite as simple as that and the way impactors (asteroids, comets, space stations or astronauts) hit the Earth is quite [...]

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Volcanoes on Earth and Beyond

Volcanoes are one of those great forces of nature that we take almost for granted on Earth. I am not sure that I would take it for granted if I lived right next to a volcano but on the overall scheme of things they are part of the Earth’s make up and mold the Earth [...]

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Plate Tectonics, Hold on! The Surface of the Earth Moves

So why do mountain ranges form, earthquakes happen, volcanoes erupt and Islands appear? Have they been here since the beginning of time perhaps created by a roving asteroid or comet Or perhaps there was a massive collision of  two planets when the Earth got formed creating islands and mountains. This is all complete rubbish of [...]

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Part 1:A Cup of Coffee and a Light Speed Tour around the Solar System

Planet Earth is getting boring. You have seen most of the countries and most of the inhabitants and swam beneath the sea, what else is there to do? Admittedly the oceans haven’t been explored to their full extent and some intense exploration needs to be done but sitting down and watching TV you can see [...]

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Moving the Earth Out Of the Way of That Big Bad Sun

I have always wanted to fly around in a spaceship seeing lots of lovely stars and planets and other curious beautiful things that exist out there. To stop getting too frustrated, I have looked on the Earth as a sort of spaceship travelling around giving everyone an eye on the universe. This is okay until [...]

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Solar Power Beamed To Earth From Space?

There are many renewable, green sources of energy one of them being solar power.  This  can be taken 1 step further by having the solar panels put into space. Obviously that requires a little more, OK a lot more effort than the words imply but would be worth it. There are benefits to outsourcing solar [...]

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Best of the Web-Earth in a Century

What will Earh be like in 100 years? Will global warming mean we all live in warmer climates? A transhumanists views of the future. A seed store that may help us in the future. Podcast (Part 1) The Vanishing Face of Gaia: A Final Warning by SETI Join the forum discussion on this post – [...]

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Is The Earth Safe From Rocky Demons Above?

Have you ever looked up into the sky and wondered what was going to drop onto your head? When you look up what do you see? Well if I was to do it now I would see a load of black clouds as I live in the rainy UK  which tends to give me a [...]

aliens

Where Are All The Civilisations?

What is going on? Where are they all? Are they here? Too many questions and literally too little time. It just seems so really boring that we can be the only ones in this universe. Time is definitely a massive problem when looking for somebody alien to chat to. Does it matter that there are [...]

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