Posts

March 20, 2015

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5:11 PM | Report: NASA May Be Hard-Pressed to Launch SLS by November 2018
A report released by NASA’s Office of Inspector General warns that the agency may be hard-pressed to have its Kennedy Space Center launch facilities ready by November 2018.
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5:00 PM | A Tour of GK Persei
In space, explosions of actual stars are a focus for scientists who hope to better understand the lifecycle of their births, lives, and deaths.
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4:40 PM | DNews: 'Goldilocks' Earth May Not Be So Special After All
Earth is in what's called the habitable zone. It's far enough from the sun that it doesn't get fried, and close enough that it gets the best of its warmth. We like to think we're special for this, but it turns out we might be pretty run of the mill.
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4:24 PM | Wreaking Havoc with a Stellar Fly-By
You can't model RW Aurigae as a single star with a disk of material around it, because there is a second star. And you can't model it as a regular old binary system either, because there are interactions between the stars and the asymmetric disk. The authors of today's paper create a comprehensive hydrodynamic model that considers many different observations of RW Aurigae.
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4:22 PM | After Pluto, Where Will NASA's New Horizons Go?
Scientists are mulling over which of two icy bodies NASA’s New Horizons spacecraft should visit following its Pluto encounter this summer (if NASA can fund it).
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4:21 PM | The solar eclipse of March 20th 2015 was observed in Finland
Observed phenomena: Solar eclipse Type of eclipse: Partial, 87,7% Type of observation: Positive Date and time: 20.3.2015; 09:05-11:17 UT Observing place: Kiiminki, Oulu, Finland Observing method: Photography Technical information about photographing equipment: Camera: Canon EOS 1100D, telescope: refractor 4”/f9.8 (L102/1000mm), AstroSolar-filter Observing conditions: Clear sky most of the time The weather forecast for the site […]
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4:18 PM | Solar Eclipse Pictures and Video to Make Your Brain Happy
On March 20, 2015, the Moon passed in front of the Sun ... if you were on the right spot on the planet. Or, better, above it! Let's start off with a special treat: From the ground, master astrophotographer Thierry Legault took video of the International Space Station crossing the Sun during the eclipse! Incredible. Legault is really, really good at this sort of thing and traveled to Spain to catch the fraction-of-a-second event.  Most of the U.S. would've been asleep during the eclipse […]
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3:55 PM | Announcing: PlanetaryTV!
Planetary Society Media Producer Merc Boyan presents our new video resource.
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3:29 PM | Ask Ethan #80: Can space expand faster than the speed of light? (Synopsis)
“If everything seems under control, you’re not going fast enough.” -Mario Andretti One of the toughest things to wrap your mind around in the natural world is the idea of special relativity: the faster you move, the closer you get to the speed of light, the more difficult it becomes to increase your speed at…
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3:28 PM | Ask Ethan #80: Can space expand faster than the speed of light?
And if so, how does Einstein’s relativity — both special and general — cope?Continue reading on Medium »
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2:48 PM | E’ primavera, scatta l’ “Operazione Rondò”
Avete visto una rondine in cielo? Segnalatela sul sito del Corpo Forestale dello Stato
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2:21 PM | Tutta l’eclissi di Sole in un video
Rivivi l'esperienza dell'eclissi di stamani in un video di pochi secondi
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1:50 PM | Dazzling Solar Eclipse Kicks Off Spring: Photos
The first day of Spring began with some dazzle in Europe and the Arctic with a solar eclipse.
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1:07 PM | Ep. 369: The Fizeau Experiment
Light is tricky stuff, and it took scientists hundreds of years to puzzle out what this stuff is. But they poked and prodded at it with many clever experiments to try to measure its speed, motion and interaction with the rest of the Universe. For example, the Fizeau Experiment, which ran light through moving water […]
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12:30 PM | Free Fiction Friday: Exeligmos Part 3
Here it is just in time for eclipse day: the final chapter of our time-spanning eclipse adventure Exeligmos. We’ve got lots more original sci-fi, eclipse-based and otherwise, on our Amazon author page… don’t forget to start this three-part tale back on Chapter 1. Exeligmos Chapter 3 by David A. Dickinson Ever watch those the old [...]
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12:00 PM | Caccia aperta alle onde gravitazionali
Se da un lato il bosone di Higgs ha rappresentato per molto tempo il “ricercato” numero uno da parte dei fisici delle particelle, motivo per cui il grande collisore adronico LHC è stato costruito, dall’altro la ricerca delle onde gravitazionali costituisce uno degli obiettivi prioritari a cui gli astronomi si stanno dedicando da qualche tempo.  La … Continue reading Caccia aperta alle onde gravitazionali →
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11:30 AM | Crash Course Astronomy Episode 10: The Sun
Doubt thou the stars are fire, doubt that the sun doth move. Doubt truth to be a liar, but never doubt I love. —Hamlet, in a letter to Ophelia Of all the stars in the Universe, the one we know best is our own Sun. That’s not to say we understand it completely, of course. But we know it’s not a burning ember, or a god, or a great ball of fire (goodness gracious). It’s a fantastically huge fusion-generating plasma ball, the main source of light, heat, and gravity in the […]
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11:19 AM | Dimentichiamo perché ricordiamo
Richiamare alla mente alcuni ricordi causa il deterioramento di altri. È la scoperta di un recente studio pubblicato su Nature Neuroscience
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9:40 AM | Free Fiction Friday: Exeligmos Part 3
Here it is just in time for eclipse day: the final chapter of our time-spanning eclipse adventure Exeligmos. We’ve got lots more original sci-fi, eclipse-based and otherwise, on our Amazon author page… don’t forget to start this three-part tale back on Chapter 1. Exeligmos Chapter 3 by David A. Dickinson Ever watch those the old [...]
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8:00 AM | Debunking Hollywood: Drowning
Debunking Hollywood is LWON’s very occasional series that takes a hard science look at common TV and movie tropes.  “Help!” The lifeguard straightens in his chair, craning his neck to find the citizen in peril. “Help!” Over there, by the barrier floats! The victim’s face is obscured by great splashes raised in her violent struggle for […]
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7:25 AM | Uno scanner che aiuta chi non vede
Gli associati lombardi dell'Unione Italiana dei Ciechi e degli Ipovedenti ha testato un apparecchio di ultima generazione
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5:30 AM | Come vedere l’eclissi di Sole online
Dove, come e quando assicurarsi lo spettacolo del Sole oscurato dalla Luna in streaming
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4:00 AM | I mini buchi neri di LHC: portali verso universi paralleli?
L’idea che esistano altri universi è alquanto affascinante, nonostante sia quasi impossibile verificarla sperimentalmente. Oggi, però, un gruppo di teorici ritiene che l’energia raggiunta con le prossime collisioni al Large Hadron Collider (LHC) permetterà di svelare l’esistenza di universi paralleli, se esistono. In un nuovo articolo pubblicato su Physics Letters B, un gruppo di tre teorici, guidati da Ahmed … Continue reading I […]
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3:00 AM | 50° Rencontres de Moriond on Gravitation 100 years after GR
The Rencontres de Moriond and GRAM Colloquium on Gravitation will review the subject 4 years after the last edition. The main topics of the conference are: Astrophysical and cosmological sources of Gravitational Waves Search for gravitational wave events (transient, continuous and stochastic background) Status of present and advanced gravitational waves detectors Space borne detectors Strong … Continue reading 50° Rencontres de Moriond on Gravitation 100 years after GR →

March 19, 2015

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11:41 PM | Orion's Fingers: New from Gemini Observatory
New from Gemini's newsletter, JUST came in my inbox. "The outflow of the 'Orion Fingers' is evident in this high-resolution image from Bally et al. (2015). The leading fingertips appear in [Fe II] (cyan), and the trailing fingers are evident in molecular hydrogen emission (orange). Comparison with earlier observations shows the motion and morphological changes of the emitting knots."Image Credit: Gemini / arXiv-----Share this specific url. ShareSpread the Love ------
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11:29 PM | LPSC 2015: First results from Dawn at Ceres: provisional place names and possible plumes
Three talks on Tuesday at the Lunar and Planetary Science Conference concerned the first results from Dawn at Ceres. Chris Russell showed a map of "quads" with provisional names on Ceres, Andreas Nathues showed that Ceres' bright spot might be an area of plume-like activity, and Francesca Zambon showed color and temperature variations across the dwarf planet.
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11:29 PM | LPSC 2015: "Bloggers, please do not blog about this talk."
One presenter at the Lunar and Planetary Science Conference asked the audience not to blog about his talk because of the embargo policy of Science and Nature. I show how this results from an incorrect interpretation of those policies. TL;DR: media reports on conference presentations do not violate Science and Nature embargo policies. Let people Tweet!
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11:05 PM | Ancient Supernova 'Dust Factory' Found in Galactic Core
Through the use of a monster telescope attached to a modified Boeing 747 jet, astronomers have discovered the dust of an ancient supernova near the center of the Milky Way.
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10:21 PM | Messenger Readies For its Last Weeks at Mercury
Low Flyovers Will Give the Best Close-up Views Sometime in the next few months, the long-running MESSENGER mission at Mercury is going to take its last swoop over the planet, and then angle into Mercury’s surface. The long-planned Hover Campaign, uses orbit-correction maneuvers to delay the spacecraft’s final plunge for a few weeks so that they [...]
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8:05 PM | Throwback Thursday: What is the Sun made of? (Synopsis)
“The sun is a miasma Of incandescent plasma The sun’s not simply made out of gas No, no, no The sun is a quagmire It’s not made of fire Forget what you’ve been told in the past” -They Might Be Giants It’s such a simple fact — that the Sun is made out of hydrogen…
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