Tag Archives: space

A one-way ticket to Mars … or even beyond?

NASA-Mars-base-concept-drawing The technical obstacles and logistical difficulties to sending a manned mission to Mars are large, but by no means insurmountable. One of the biggest issues is the launch from Mars and subsequent return journey … which is just one of the reasons former NASA engineer Jim McLane reckons a Mars mission should be one-person and one-way only. [via SlashDot; image courtesy NASA]

“When we eliminate the need to launch off Mars, we remove the mission’s most daunting obstacle,” said McLane. And because of a small crew size, the spacecraft could be smaller and the need for consumables and supplies would be decreased, making the mission cheaper and less complicated.

While some might classify this as a suicide mission, McLane feels the concept is completely logical.

“There would be tremendous risk, yes,” said McLane, “but I don’t think that’s guaranteed any more than you would say climbing a mountain alone is a suicide mission. People do dangerous things all the time, and this would be something really unique, to go to Mars. I don’t think there would be any shortage of people willing to volunteer for the mission […] That will be the easiest part of this whole program.”

If you met the physical criteria for a mission like that, would you volunteer? I’d certainly consider it, I think, but in truth I don’t think I’m quite that brave.

And while we’re on the subject of planets in our solar system, there may be another one to add to the list. Via Warren Ellis comes news that Japanese astronomers believe they have located an as-yet undiscovered planet that is half the mass of our own Earth.

Of course, this “Planet X” is way out in the Kuiper Belt and orbits the sun about once every thousand years, so it’s not a very likely candidate for exploration. But it makes you wonder how much more stuff there is lurking in the outer reaches of the solar system waiting to be discovered.

Gravitational lensing

Gravitational-lens-einstein-ring-galaxy Gravitational lensing is all the rage in astronomy right now. A confirmation of one of Einstein’s theories, the phenomenon has seen recent use in mapping dark matter and detecting exoplanets.

To avoid making myself look like the bluffer and layman enthusiast that I am, I’ll defer to the experts and let Phil “Bad Astronomy” Plait explain how gravitational lenses work, and point out that the Hubble telescope has just found a big new crop of them. [Image: NASA, ESA, C. Faure (Zentrum für Astronomie, University of Heidelberg) and J.P. Kneib (Laboratoire d’Astrophysique de Marseille)]

“Big deal,” you might be thinking. In which case, I’ll direct you to Centauri Dreams, where you’ll find an explanation of how the phenomenon might be used for the rapid propulsion of interstellar probes or (in the comments) communication between star systems.

Shooting a satellite

A missile firing from a US vesselAs you may have read, a certain US satellite is heading back to Earth rather faster than expected. Some people are worried that when the satellite crashes back to Earth, the hydrazine fuel cell within may cause chlorine-poisoning-like symptoms to anyone nearby. That two thirds of our planet is water and that the size of the effect isn’t much than a few acres doesn’t seem to matter. The US have decided to blow the satellite up in orbit before we get the chance to play satellite crashland lottery, in a move that many analysts see as retaliation for China shooting down its own satellite last year. At least we might get to see some pretty effects, if someone manages to capture the missile on video.

[story and picture via Responsible Nanotechnology]

Space in video games

Space combat in all its explosive glory in Sins Of A Solar Empire

Online video game magazine The Escapist, home to the hilariously funny animated review column Zero Punctuation, has the theme of space for its 136th issue. They talk about why the starfighter genre appears to have died down since the heyday of X-Wing vs Tie Fighter and Wing Commander and about how science fiction is, although often set in the future, a commentary about now.

Although the space combat genre is in a lull right now, space strategy and so called ‘4X’ civilisation games are enjoying some underground success thanks to the efforts of indie games publisher Stardock, which produced the critically acclaimed Galactic Civilisations II last year. Its latest release, Sins of a Solar Empire, came out this month and combines Real Time Strategy elements of controlling fleets of spacecraft as well as exploration and colonisation. Currently holding a very respectable 87% average on Metacritic and impressing this writer enough to squeeze it into my schedule, games like this and Will Wright’s forthcoming evolutionary Spore are showing that maybe there’s a future for space in video games after all.

[Sins Of A Solar Empire screenshot via IGN]

The future is … expensive

pile-of-dollar-bills Wired’s Gadget Lab blog has a piece on science fictional technologies or engineering projects that are within our grasp in almost every way … except financially. It’s a decent enough blend of informative and snarky that I can forgive the use of the term “sci-fi” in the title … 😉

Floating cities, Transatlantic tunnels … it’s kind of sad to think that, as the commenters there keep pointing out, most of the projected costs would vanish into the budget for the Iraq “liberation” and rattle around like a ball bearing in an oil tanker. Also pointed out is the conspicuous absence of the space elevator – I seriously want to see one of those built before I die. [Image from stock.xchng]

Additional bonus! The last two entries in the Wired piece are about rail guns and space travel; frequent Futurismic commenter Brian Wang combines the two in a post about the potential of rail guns to be used as economical launch systems to lift payloads to orbit.