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La Nasa a trouvé de l’eau sur Mars, mais elle n’a pas le droit d’y toucher. L’annonce fracassante de l’agence spatiale se heurte aux lois du Traité de l’espace.

La Nasa a trouvé de l’eau sur Mars, mais elle n’a pas le droit d’y toucher

Ce lundi 28 septembre, l’agence spatiale américaine annonçait au monde entier, après plusieurs jours de teasing, que l’eau liquide existe bien sur Mars, ou du moins des minéraux hydratés pendant une partie de l’année martienne. Dans les minutes qui ont suivi cette conférence, certains astronomes se sont empressés de fantasmer sur ce que cela change pour les futurs voyages de l’homme sur la planète rouge. Mais comme le signale le site Quartz, si la présence d’eau est bien confirmée sur place, l’homme ne pourra pas s’en approcher: How NASA might build its very first warp drive. I want to see this work as much as anyone else on io9, but every time I read an article on warp drive, I expend so much mental energy trying to wrap my head around the concept that my entire left hand side goes numb.

How NASA might build its very first warp drive

Somewhere along the line my understanding of concepts such as the nature of Spacetime is deficient. Here's the problem. When I think about the idea of expanding the conceptual framework that describes the continuum between two abstract concepts, behind a spaceship, whilst contracting the conceptual framework that describes the continuum between two abstract concepts, in front of a spaceship; all I can think of is that this like saying that when in conversation with another person, I can reach out with my hand, grasp hold of the words that are coming out of that other persons mouth and fold them in half. What Would Happen To Your Body In Space Without A Spacesuit? Have you ever wondered what might happen to your body in space without a spacesuit?

What Would Happen To Your Body In Space Without A Spacesuit?

Is it really as dramatic as the movies make it out to be? Would you literally EXPLODE? Could you survive? On Earth, we live a pretty cozy existence thanks to our protective atmosphere. It shields us from the Sun’s harmful UV rays, regulates temperatures and also maintains a nice atmospheric pressure. The most serious dangers of exposure to outer space are a lack of oxygen and ebullism. As mentioned, the other serious danger is a lack of oxygen. MIT Students Claim Astronauts Will Starve On 'Mars One' Mission. Astronomers Discover Planet Identical To Earth With Orbital Space Mirror. WASHINGTON—In what many are hailing as the most significant development in the history of space exploration, NASA scientists announced Thursday that a planet seemingly identical to Earth has been discovered by the agency’s Orbital Space Mirror.

Astronomers Discover Planet Identical To Earth With Orbital Space Mirror

According to NASA, the $2.9 billion aluminum glass mirror, which stretches over 180 feet wide and 147 feet tall, has already produced invaluable data suggesting that our solar system may contain a terrestrial planet of the exact same size, shape, and surface composition as Earth. “This is a historic moment for humankind to confirm the existence of another planet that is almost indistinguishable from our own,” said mission leader Allen Brugel, who explained that after releasing the Orbital Mirror from a Delta IV heavy rocket at an operational altitude of 104,000 miles, the team received almost instantaneous images of an Earth-like planet approximately 208,000 miles away.

L'espace, c'est dangereux et les programmes spatiaux doivent avoir la culture du risque. Deux engins ont explosé fin octobre, une fusée Antares et le SpaceShipTwo de Virgin Galatic.

L'espace, c'est dangereux et les programmes spatiaux doivent avoir la culture du risque

Mais ce qui devrait nous étonner, c'est le phénomène auquel nous sommes désormais habitués: une fusée qui n'explose pas et qui, stable et droite comme un i, quitte l'atmosphère. Self-replicating spacecraft. The idea of self-replicating spacecraft has been applied — in theory — to several distinct "tasks".

Self-replicating spacecraft

The particular variant of this idea applied to the idea of space exploration is known as a von Neumann probe.

Extraterrestres

Nasa validates 'impossible' space drive. Nasa is a major player in space science, so when a team from the agency this week presents evidence that "impossible" microwave thrusters seem to work, something strange is definitely going on.

Nasa validates 'impossible' space drive

Either the results are completely wrong, or Nasa has confirmed a major breakthrough in space propulsion. British scientist Roger Shawyer has been trying to interest people in his EmDrive for some years through his company SPR Ltd. Shawyer claims the EmDrive converts electric power into thrust, without the need for any propellant by bouncing microwaves around in a closed container. He has built a number of demonstration systems, but critics reject his relativity-based theory and insist that, according to the law of conservation of momentum, it cannot work. According to good scientific practice, an independent third party needed to replicate Shawyer's results. What would Earth's skies look like with Saturn's rings? Posted By Jason Davis Topics: pretty pictures, art Illustrator and author Ron Miller specializes in, among other things, incredible visualizations of other worlds.

What would Earth's skies look like with Saturn's rings?

He has rendered the surface of Titan, peered into black holes for Discover magazine, and designed a Pluto stamp that is currently hurtling toward the far reaches of our solar system aboard the New Horizons spacecraft. Now, Miller brings his visualizations back to Earth for a series exploring what our skies would look like with Saturn’s majestic rings. Miller strived to make the images scientifically accurate, adding nice touches like orange-pink shadows resulting from sunlight passing through the Earth’s atmosphere. We'll start with Washington, D.C. and work our way southward. Ron Miller Rings over Washington D.C.

From Washington, D.C., the rings would only fill a portion of the sky, but appear striking nonetheless. Comment les programmes spatiaux choisissent-ils les animaux qu’ils envoient dans l’espace? - Sam après son vol sur Little Joe-2 (LJ-2) en décembre 1959 / NASA - L'Iran a déclaré lundi avoir envoyé un singe dans l’espace.

Comment les programmes spatiaux choisissent-ils les animaux qu’ils envoient dans l’espace?

Le pays avait déjà envoyé de plus petits organismes dans la frontière finale, dont un rat, des vers et deux tortues. Quelles sont les caractéristiques recherchées par les programmes spatiaux quand ils choisissent des animaux? Une taille et un poids raisonnable, une expérience des laboratoires et une capacité à rester calme sous la pression. LIVE REAL TIME SATELLITE TRACKING AND PREDICTIONS. 7 Horrible Ways The Universe Can Destroy Us Without Warning. You know what the universe is?

7 Horrible Ways The Universe Can Destroy Us Without Warning

A total dick, that's what. You know what else it is? A giant microwave oven. If you tune your TV set between channels, part of the "snow" that you see on the screen is background noise caused by cosmic radiation. Here's NASA's New Design for a Warp Drive Ship. Wha!? I thought the Alcoubierre drive was unfeasible due to insanely large energy requirements. Must. Watch. Entire. Video. It was in the initial proposal by Alcubierre himself in 96. White has focused a lot of time on bringing the energy costs down. The thing I find interesting is this: I was thinking the ratio of ring to ship would be greater. Espace. Les glorieuses fusées russes se font attendre.