warrenellis + space   213

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.
space 
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.
space 
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.
space 
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."
space 
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.
space 
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."
space 
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."
space 
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
space 
may 2015 by warrenellis
Multifractals suggest the existence of an unknown physical mechanism on the Sun
AN UNKNOWN PHYSICAL MECHANISM ON THE SUN

THEY WRITE THESE HEADLINES JUST FOR ME
space 
may 2015 by warrenellis
NuSTAR captures possible 'screams' from zombie stars
"Peering into the heart of the Milky Way galaxy, NASA's Nuclear Spectroscopic Telescope Array (NuSTAR) has spotted a mysterious glow of high-energy X-rays that, according to scientists, could be the "howls" of dead stars as they feed on stellar companions."
space  doom 
may 2015 by warrenellis
Enormous hole in the universe may not be the only one
"Astronomers have found evidence of a giant void that could be the largest known structure in the universe. The "supervoid" solves a controversial cosmic puzzle: it explains the origin of a large and anomalously cold region of the sky. However, future observations are needed to confirm the discovery and determine whether the void is unique."

Ref. Laura Mersini-Houghton's multiversal impact theory
space 
april 2015 by warrenellis
Search for advanced civilizations beyond Earth finds nothing obvious in 100,000 galaxies
"After searching 100,000 galaxies for signs of highly advanced extraterrestrial life, a team of scientists using observations from NASA's WISE orbiting observatory has found no evidence of advanced civilizations in them. "The idea behind our research is that, if an entire galaxy had been colonized by an advanced spacefaring civilization, the energy produced by that civilization's technologies would be detectable in mid-infrared wavelengths—exactly the radiation that the WISE satellite was designed to detect for other astronomical purposes," said Jason T. Wright, an assistant professor of astronomy and astrophysics at the Center for Exoplanets and Habitable Worlds at Penn State University, who conceived of and initiated the research."

#colduncaringvoid
space 
april 2015 by warrenellis
Russia to build own space station by 2023, says Putin
"Russia plans to build its own orbiting space station by 2023, President Vladimir Putin said Thursday during a marathon call-in session with the nation. "By 2023, we plan to create our own national space station in orbit," Putin said. "This is something far-off in the future, but also necessary for us from the point of view of our national economy.""

(Bullshit.)
space 
april 2015 by warrenellis
Sun experiences seasonal changes, new research finds
"The Sun undergoes a type of seasonal variability with its activity waxing and waning over the course of nearly two years, according to a new study by a team of researchers led by the National Center for Atmospheric Research (NCAR). This behavior affects the peaks and valleys in the approximately 11-year solar cycle, sometimes amplifying and sometimes weakening the solar storms that can buffet Earth's atmosphere."
space 
april 2015 by warrenellis
Russia 'busts satellite spy ring': space commander
""Very recently, specialists of the department of space intelligence centre uncovered a newly created group of space satellites... made for radio-technical reconnaissance of equipment on Russian territory," said the commander of Russian Space Command, Oleg Maidanovich."
space  war  pol 
april 2015 by warrenellis
What Are the Colors of Alien Life? - The New Yorker
"Rothschild has been collaborating with a team of undergraduates from Stanford and Brown to engineer an artificial extremophile called Hell Cell; the project, or one like it, may free future astronomers from their terracentricity by giving them access to the biosignatures of speculative, synthetic life-forms. "

HELL CELL
sci  space  bio 
april 2015 by warrenellis
The corrugated galaxy: Milky Way may be much larger than previously estimated
"The Milky Way galaxy is at least 50 percent larger than is commonly estimated, according to new findings that reveal that the galactic disk is contoured into several concentric ripples."
space 
march 2015 by warrenellis
Astronomers find unexpected 'storm' at galaxy's core
"It appears that a supermassive black hole is explosively heating and blasting around the gas in this galaxy and, as a result, is transforming it from an actively star-forming galaxy into one devoid of gas that can no longer form stars,"
space 
february 2015 by warrenellis
No Big Bang? Quantum equation predicts universe has no beginning
"The universe may have existed forever, according to a new model that applies quantum correction terms to complement Einstein's theory of general relativity. The model may also account for dark matter and dark energy, resolving multiple problems at once."
space 
february 2015 by warrenellis
Black holes do not exist where space and time do not exist, says new theory
"In gravity's rainbow, space does not exist below a certain minimum length, and time does not exist below a certain minimum time interval," Ali, a physicist at the Zewail City of Science and Technology and Benha University, both in Egypt, told Phys.org. "So, all objects existing in space and occurring at a time do not exist below that length and time interval [which are associated with the Planck scale]. As the event horizon is a place in space which exists at a point in time, it also does not exist below that scale."
space 
january 2015 by warrenellis
In theory, the Milky Way could be a 'galactic transport system'
"Obviously we're not claiming that our galaxy is definitely a wormhole, but simply that, according to theoretical models, this hypothesis is a possibility"
space 
january 2015 by warrenellis
Vega ready to launch spaceplane / Launchers / Our Activities / ESA
"On its first launch of the year, Europe’s Vega rocket will loft ESA’s unmanned spaceplane to test reentry technologies for future vehicles."
space 
january 2015 by warrenellis
Galactic 'hailstorm' in the early universe
"Using a combination of data gathered from powerful radio telescopes and supercomputer simulations, the teams found that a quasar spits out cold gas at speeds up to 2000 kilometres per second, and across distances of nearly 200,000 light years - much farther than has been observed before."
space 
january 2015 by warrenellis
All Dressed Up For Mars and Nowhere to Go — Matter — Medium
"...from everything I can find, Mars One doesn’t appear to be in any way qualified to carry off the biggest, most complex, most audacious, and most dangerous exploration mission in all of human history. That they don’t have the money to do it. That 200,000 people didn’t actually apply. That, with all the good faith one can muster, I wouldn’t classify it exactly as a scam—but that it seems to be, at best, an amazingly hubristic fantasy: an absolute faith in the free market, in technology, in the media, in money, to be able to somehow, magically, do what thousands of highly qualified people in government agencies have so far not yet been able to do over decades of diligently trying, making slow headway through individually hard-won breakthroughs, working in relative anonymity pursuing their life’s work."
space 
january 2015 by warrenellis
New Parallel Universe Theory - Business Insider
"If it holds true for our actual universe, then the big bang could no longer be considered a cosmic beginning but rather only a phase in an effectively timeless and eternal universe. More prosaically, a two-branched arrow of time would lead to curious incongruities for observers on opposite sides. “This two-futures situation would exhibit a single, chaotic past in both directions, meaning that there would be essentially two universes, one on either side of this central state,” Barbour says. “If they were complicated enough, both sides could sustain observers who would perceive time going in opposite directions. Any intelligent beings there would define their arrow of time as moving away from this central state. They would think we now live in their deepest past.”"
time  space 
january 2015 by warrenellis
The Search for Starivores, Intelligent Life that Could Eat the Sun | Motherboard
"what astronomers may have taken to be two massive balls of plasma locked in a gravitational embrace could actually be a very large, very hungry civilization devouring a hapless star."
space 
january 2015 by warrenellis
Hubble discovers that Milky Way core drives wind at 2 million miles per hour
"At a time when our earliest human ancestors had recently mastered walking upright, the heart of our Milky Way galaxy underwent a titanic eruption, driving gases and other material outward at 2 million miles per hour.

"Now, at least 2 million years later, astronomers are witnessing the aftermath of the explosion: billowing clouds of gas towering about 30,000 light-years above and below the plane of our galaxy."
space 
january 2015 by warrenellis
Oceans on a Larger ‘Earth’
"Planets two to four times Earth’s mass turn out to be better at maintaining their oceans than Earth itself. Super-Earth oceans can persist for ten billion years unless destroyed by a red giant primary star as it nears the end of its life. The largest planet in these simulations — five times Earth’s mass — took a billion years to develop its ocean in the first place, however, the result of a thicker crust and lithosphere and the resultant delay in volcanic outgassing."
space 
january 2015 by warrenellis
Before explosion, NASA knew aging Soviet engines could crack and leak fuel
"Years before an unmanned rocket erupted in a fireball in October, NASA officials knew the metal in its 50-year-old Soviet-made engines could crack, causing fuel to leak and ignite, government documents show."
space 
january 2015 by warrenellis
NASA considers possibilities for manned mission to Venus
"NASA's Systems Analysis and Concepts Directorate has issued a report outlining a possible way for humans to visit Venus, rather than Mars—by hovering in the atmosphere instead of landing on the surface. The hovering vehicle, which they call a High Altitude Venus Operational Concept (HAVOC), "

HAVOC

!!!
space 
december 2014 by warrenellis
Complex life may be possible in only 10% of all galaxies | Science/AAAS | News
"The universe may be a lonelier place than previously thought. Of the estimated 100 billion galaxies in the observable universe, only one in 10 can support complex life like that on Earth, a pair of astrophysicists argues. Everywhere else, stellar explosions known as gamma ray bursts would regularly wipe out any life forms more elaborate than microbes. The detonations also kept the universe lifeless for billions of years after the big bang, the researchers say."
space  extinction 
november 2014 by warrenellis
Spooky alignment of quasar axes across billions of light-years with large-scale structure | KurzweilAI
New observations with ESO’s Very Large Telescope (VLT) in Chile have revealed alignments over the largest structures ever discovered in the Universe. A European research team has found that the rotation axes of the central supermassive black holes in a sample of quasars are parallel to each other over distances of billions of light-years. The team has also found that the rotation axes of these quasars tend to be aligned with the vast structures in the cosmic web in which they reside.
space  spooky 
november 2014 by warrenellis
Synthetic biology could be big boost to interplanetary space travel
In the cover story of today's issue of the Journal of the Royal Society Interface, four bioengineers describe how synthetic biology – what some have termed "genetic engineering on steroids" – could allow space travelers to use microbes to produce their own fuel, food, medicines and building materials from raw feedstocks readily available on Mars or the moon, instead of carrying all supplies aboard the spacecraft or making them at the destination with conventional non-biological methods.
sci  bio  space 
november 2014 by warrenellis
Scientists build first map of hidden universe
"A team led by astronomers from the Max Planck Institute for Astronomy has created the first three-dimensional map of the 'adolescent' Universe, just 3 billion years after the Big Bang. This map, built from data collected from the W. M. Keck Observatory, is millions of light-years across and provides a tantalizing glimpse of large structures in the 'cosmic web' – the backbone of cosmic structure."
space 
october 2014 by warrenellis
Hubble maps temperature, water vapor on wild exoplanet
"the planet, called WASP-43b, is no place to call home. It's a world of extremes, where winds howl at the speed of sound from a 3,000-degree-Fahrenheit dayside to a pitch-black nightside when temperatures plunge to a relatively cool 1,000 degrees Fahrenheit, still hot enough to melt silver."
space 
october 2014 by warrenellis
Researcher studies possibility of metal snow on Venus
"My dissertation is focusing on metal condensates in planetary atmospheres," said Kohler, who is the only student in the Space and Planetary Sciences Center currently researching Venus. "I have been primarily looking at the stability of materials on Venus and determining what can exist at certain altitudes. I'm finding that there are different forms of iron compounds or mercury compounds that can exist at these conditions."

METAL SNOW
space 
october 2014 by warrenellis
Hugh Everett: The man who gave us the multiverse - physics-math - 25 September 2014 - New Scientist
"Hugh Everett's many-worlds interpretation of quantum mechanics arose from what must have been the most world-changing drinking session of all time. One evening in 1954, in a student hall at Princeton University, grad student Everett was drinking sherry with his friends when he came up with the idea that quantum effects cause the universe to constantly split."
sci  space 
october 2014 by warrenellis
Cassini watches mysterious feature evolve in Titan sea
"NASA's Cassini spacecraft is monitoring the evolution of a mysterious feature in a large hydrocarbon sea on Saturn's moon Titan. The feature covers an area of about 100 square miles (260 square kilometers) in Ligeia Mare, one of the largest seas on Titan. It has now been observed twice by Cassini's radar experiment, but its appearance changed between the two apparitions."
space 
september 2014 by warrenellis
Researcher shows that black holes do not exist
"But now Mersini-Houghton describes an entirely new scenario. She and Hawking both agree that as a star collapses under its own gravity, it produces Hawking radiation. However, in her new work, Mersini-Houghton shows that by giving off this radiation, the star also sheds mass. So much so that as it shrinks it no longer has the density to become a black hole."

Mersini-Houghton is a wild mind, and note this isn't peer-reviewed -- but if you're reading this, understand that I file mad ideas as research material, not post them as news
space 
september 2014 by warrenellis
MIT School of Science
MIT NEWS OFFICE, Particle detector finds hints of dark matter in space, Sep 18, 2014
space 
september 2014 by warrenellis
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