Ice to see you - and make mine a long tall cool one.

University of Arizona researchers have made some startling new observations on Mars, having watched a patch of ice appear and disappear on the surface. That may not sound terribly exciting, but some significant deductions have arisen from the observation of the ice, which remarkably enough, was not only on the surface, but far from the North Pole. The ice looks to have been exposed by the impact of a meteorite, which gave the researchers the opportunity to watch how it behaved on the surface, and here comes the really exciting bit. By running some mathematical models, it was possible to make an estimate of the amount of ice likely to be mixed in with the soil, and with that knowledge it became possible to figure out the purity of the water based on how fast it dissipated; a whopping 99%! And that ice may just be a couple of meters below the surface, with the layer itself weighing in at a meter thick! This has got to be a big boost for the prospects of a sustainable human presence on Mars and for the possibility that life may yet cling to the planet. There's a very good and detailed article on the discovery to be found on the Cosmic Log page at MSNBC.

Force Field would protect astronauts on Mars trip

British scientists based at the Rutherford Appleton Laboratory and universities of York and Strathclyde have made a major breakthrough that offers the promise of a safe trip to Mars by astronauts. One of the biggest worries facing mission planners for a trip to Mars is the issue of Solar Storms. Astronauts leaving the safety of the earth's magnetic field face the very real danger of exposure to lethal levels of radiation. The Apollo missions left the earth's protective field for only a few days, but an 18 month round trip to Mars would almost certainly encounter one or more of these storms. The effect would pound the spacecraft's electronics and quite likely kill the crew. It has been proposed that a crew with adequate warning of a storm could orientate their craft so as put as much of its bulk between them and the incoming radiation, or to carry very heavy shielding, but this new line of research proposes manufacturing a portable magnetic field to protect the craft. This mini-magnetosphere would be housed in two outrider satellites in front of the spacecraft. The system is in the process of being patented and a working prototype could be built within 5 years.

NASA's Phoenix Lander signing off

The onset of the Martian winter and chilling temperatures as low minus 141 degrees Fahrenheit means that mission controllers of NASA's Phoenix Lander are facing the possibility that the probe may well be about to sign off for good. Communications in the last few days have been patchy to say the least, with the craft showing great reluctance to talk to mission control. As energy levels on the craft plummeted, mission control switched off various power hungry devices including 2 heaters, but it was touch and go if Phoenix would be able to stir back into life. 2 Nail biting days went by (29th, 30th Oct) before a signal was received. Though Phoenix is now back in touch, it is felt that the craft may only have a few weeks left before it finally succumbs to the harsh environment, though it has lasted several months longer than originally planned.

Spirit digs up more evidence for water

It was an entirely accidental event, but when a gummed up wheel on the Spirit rover scuffed up some Martian dirt it revealed something that literally had NASA scientists gasping with amazement. Beneath the regular dirty red Martian earth was a layer of intensely bright material, which analysis revealed to be extremely high in silica, so much in fact (90 percent) that it almost certainly required water to produce. One possible origin for the silica may have been volcanic activity, with the silica brought about through the interaction of water, the soil, and acid vapours from the volcano. The material could also have formed in water in a hot spring environment. Either way, it offers yet more compelling evidence for a high water presence on Mars in the past, and that can only increase speculation that Mars may once have enjoyed an environment much closer to Earth than it does today.

Candor Chasma had a watery past

Yet more persuasive evidence has arrived from Mars supporting the theory that the planet had a very wet past indeed. Newly analysed images from Europe's Mars Express orbiter show an area known as Candor Chasma, a small part of the great Martian rift valley Valles Marineris. The Valles Marineris is as long as the United States and in places plunges miles down, but in the Candor Chasma region, scientists have spotted some intriguing geological features. Seen in the images is a hilly landscape composed of alternating bands of light and dark coloured rock. It could have been wind or volcanic forces which forged these features, but water (and water in vast quantities) seems the most likely agent. Further supporting this contention, the striped landscape also boasts a network of cracks, known as joints. These are surrounded by prominent haloes of bleached rock. The same features have been identified here on Earth and what this seems to indicate, say a team from the University of Arizona, is "a clear indication of chemical interactions between fluids circulating within the fracture and the host rock". Most promisingly, these features are millions of years old and have been exposed slowly by the elements. Locked underground at the time the water was present in liquid form, this would have provided a very hospitable place for primitive life to take hold. The BBC has the full story.

Fascists On Mars

This looks totally insane, but a film that has been made in Italy is actually called Fascists On Mars, and no, its not allegorical, this film really is about fascists who travel to Mars. Called Fascisti su Marte in Italian, it's an extraordinary story set in 1939, telling of a group of fascists who decide to transplant their warped political philosophy to Mars. The mastermind (if that's the right word) behind this cinematic marvel is 42 year old Corrado Guzzanti, a comedian of enormous stature in Italy, famous for his biting satires and attacks on prominent politicians and institutions. The film is apparently narrated by an off camera voice, as in the news reels of the time, and you can see from the trailer that this method is extended to the visuals, which look like something out of an old Flash Gordon serial, with silver tail finned rockets and flaming meteors. It's very hard to judge exactly what is going on in this film from a trailer (especially as I don't speak the lingo) but it looks utterly out of this world, full of larger than life situations and broad slapstick comedy. The trailer can be found here leonardo.it and there are a good many clips (don't ask about the legality, I'm just pointing them out) at Youtube.