warrenellis + space   249

Life-supporting pilot plant
- "international ESA-led Micro-Ecological Life Support System Alternative, or MELiSSA"
5 weeks ago by warrenellis
Astronomers discover sunscreen snow falling on hot exoplanet
Astronomers at Penn State have used the Hubble Space Telescope to find a blistering-hot giant planet outside our solar system where the atmosphere "snows" titanium dioxide—the active ingredient in sunscreen. These Hubble observations are the first detections of this "snow-out" process, called a "cold trap," on an exoplanet.
october 2017 by warrenellis
New survey hints at exotic origin for the Cold Spot
'Perhaps the most exciting of these is that the Cold Spot was caused by a collision between our universe and another bubble universe. If further, more detailed, analysis of CMB data proves this to be the case then the Cold Spot might be taken as the first evidence for the multiverse - and billions of other universes may exist like our own."
april 2017 by warrenellis
Skyscraper in the Clouds
"Analemma tower... is conceived as a huge construction tethered to an asteroid that would be moved into what the firm describes as ‘an eccentric geosynchronous orbit’ over Earth. The orbit allows the structure to move between the northern and southern hemispheres, tracing out a figure-eight over the surface. With the slowest speed over the ground at the top and bottom of the figure-eight, Clouds Architecture Office suggests that occupants could move back and forth, interacting with ground resources at these points. New York City is suggested as the location for one of the slow parts of the preferred orbit."
space  architecture  mad 
march 2017 by warrenellis
How a NASA team turned a smartphone into a satellite business
"a consumer-grade smartphone could be used to power a satellite in space"
space  comms 
february 2016 by warrenellis
Reflections on the habitability of Earth
Managing these myriad calculations, the index gives the Earth, if observed from afar as we now observe faraway planets, about an 82 percent chance of being right for life.
But wait—only 82 percent?
Why wouldn't the Earth—the single example of a life-hosting world in all our experience—score a perfect, 100 percent rating?
"Basically, where we lose some of the probability, or chance for life, is that we could be too close to the star," Barnes said. "We actually are kind of close to the inner edge of the habitable zone. If we spotted Earth with our current techniques, we would reasonably conclude that it could be too hot for life."
space  eco 
february 2016 by warrenellis
Watch this hypnotic view of Earth from space over 24 hours
Glittering Blue is a beautiful, simple website that shows 24 hours of observations of Earth from the Japanese weather satellite Himawari-8 like you’ve never seen before.
space  web 
january 2016 by warrenellis
Globular clusters could host interstellar civilizations
So if habitable planets can form in globular clusters and survive for billions of years, what are the consequences for life should it evolve? Life would have ample time to become increasingly complex, and even potentially develop intelligence.
Such a civilization would enjoy a very different environment than our own. The nearest star to our solar system is four light-years, or 24 trillion miles, away. In contrast, the nearest star within a globular cluster could be about 20 times closer - just one trillion miles away. This would make interstellar communication and exploration significantly easier.
"We call it the 'globular cluster opportunity,'" says DiStefano. "Sending a broadcast between the stars wouldn't take any longer than a letter from the U.S. to Europe in the 18th century."
"Interstellar travel would take less time too. The Voyager probes are 100 billion miles from Earth, or one-tenth as far as it would take to reach the closest star if we lived in a globular cluster. That means sending an interstellar probe is something a civilization at our technological level could do in a globular cluster," she adds.
january 2016 by warrenellis
Nearby star hosts closest alien planet in the ‘habitable zone’ | KurzweilAI
UNSW Australia astronomers have discovered the closest potentially habitable planet found outside our solar system so far, orbiting a star just 14 light years away.

The planet, more than four times the mass of the Earth, is one of three that the team detected around a red dwarf star called Wolf 1061.
december 2015 by warrenellis
New Clues to Ceres' Bright Spots and Origins | NASA
Ceres has more than 130 bright areas, and most of them are associated with impact craters. Study authors, led by Andreas Nathues at Max Planck Institute for Solar System Research, Göttingen, Germany, write that the bright material is consistent with a type of magnesium sulfate called hexahydrite. A different type of magnesium sulfate is familiar on Earth as Epsom salt.
december 2015 by warrenellis
Vizual Statistix • Terraforming other planets is a common theme of...
"Terraforming other planets is a common theme of sci-fi books and movies; humans need to leave Earth and inhabit new worlds, but first they have to make them livable. These maps are a play on that idea. I used digital elevation models of Mars (where a large northern ocean may actually have existed if/when the planet had a thicker atmosphere) and the Moon, and simply filled them with water to three elevations. I will note that many people have made far prettier versions of terraformed maps (e.g., Mars, Moon). The goal here was to show how changes in sea level relative to datum affect the land-sea balance."
november 2015 by warrenellis
Rosetta finds molecular oxygen on comet 67P
"We believe this oxygen is primordial, which means it is older than our Solar System," said Bieler.
october 2015 by warrenellis
All-female Russian crew starts Moon mission test
"Six Russian women on Wednesday clambered into a mock spaceship to begin a unique experiment testing how an all-female crew would interact on a trip to the Moon and back. For eight days, the female volunteers will live inside a wood-panelled suite of rooms at Moscow's Institute of Biomedical Problems, renowned for its wacky research into the psychological and physical effects of space travel."
october 2015 by warrenellis
Found Objects: The Highdown Rocket Site IOW
"Under the instruction of architect John A. Strubbe, construction began in April 1956. The Needles Headland was transformed looking now like something out of Quatermass or James Bond."
august 2015 by warrenellis
Could we live on Jupiter?
"The only thing that's lighter than hydrogen is hot hydrogen. Let's say you could make a balloon, and fill it with superheated hydrogen and float around the cloud tops of Jupiter suffering the crushing gravity. Is there anything else that might kill you?

"Did you leave Earth? Then of course there is. Everything is going to kill you, always. You might want to write that on the brass plaque next to your ship's wheel with the carving of Shiva in the center there, Captain Baron Cogsworth Copperglass."

phys.org getting snarky in its old age
may 2015 by warrenellis
Multifractals suggest the existence of an unknown physical mechanism on the Sun

may 2015 by warrenellis
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