Posts

July 15, 2014

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4:00 AM | Esplosioni stellari in 3D
Grazie ad una serie di simulazioni numeriche realizzate con il supercomputer Stampede finanziato dalla National Science Foundation, Philipp Moesta e Christian D. Ott del California Institute of Technology hanno prodotto le prime immagini tridimensionali del collasso gravitazionale di una stella tenendo conto degli effetti della relatività generale e della magnetoidrodinamica. Questo processo causa l’esplosione stellare che dà luogo alla […]
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2:31 AM | Messier Monday: A Cluster That Stands Out From The Galaxy, M23 (Synopsis)
“[T]his all fades to black, and it’s gone. It’s dust. Choose carefully what you obsess about.” -Meshell Ndegeocello It’s been a long time since we’ve had a new open cluster to look at, since the plane of the Milky Way (and the region towards the galactic center) has been obscured by the Earth and the…

July 14, 2014

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11:00 PM | When the 'Supermoon' Wowed the World: Photos
On July 12, the moon may have seemed slightly brighter to the casual observer. This is how the 'supermoon' appeared around the globe.
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9:20 PM | Venus Express Survives Daring Atmospheric Dive
The European spacecraft has completed a risky aerobreaking maneuver in Venus' atmosphere, allowing critical data of the planet's atmosphere to be taken. Continue reading →
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6:41 PM | Global climate models fail to simulate key dust characteristics
Climate models that simulate the airborne African dust that influences Atlantic Ocean hurricanes are not up to the task of accurately representing the characteristics of that dust. In a new study, researchers led by Amato Evan, a climate scientist at Scripps Institution of Oceanography, UC San Diego, examined the performance of 23 state-of-the-art global climate models used in the Fifth Assessment Report of the Intergovernmental Panel on Climate Change. The researchers found that none of […]
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5:45 PM | Hubble Examines Galaxy's Throbbing Heart
As part of an ongoing survey of active galaxies, the Hubble Space Telescope looked deep into the heart of one stunning example just 32 million light-years from the Milky Way. Continue reading →
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5:03 PM | Ecco i risultati del rapporto Osmed 2013
L'Agenzia Italiana del Farmaco (Aifa) ha appena divulgato il rapporto Osmed 2013, che monitora la spesa farmaceutica convenzionata a livello nazionale e regionale tramite l'elaborazione di oltre 500 milioni di ricette prescritte dai medici di medicina generale e inviate da 18mila farmacie sul territorio. Il quadro sanitario che emerge dal rapporto parla chiaro: il consumo di farmaci è aumentato rispetto all'anno precedente, così come, naturalmente, la spesa farmaceutica totale. […]
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4:46 PM | T-1 year for New Horizons!
An artist's rendering on New Horizons at Pluto.  (Image credit: NASA) While today's Bastille Day celebration in France is marked by the 100th anniversary of the beginning of World War I, next year we can look forward to an even rarer event - our first ever flyby of the dwarf planet Pluto.  That's right, we're within a year now of finally unlocking the secrets of this mysterious world!Launched back in January of 2006, New Horizons has now spent the last eight years […]
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2:03 PM | La Concordia di nuovo a galla
La rimozione della Costa Concordia - che da oltre due anni, dal disastro del 13 gennaio 2012, fiancheggia l'isola del Giglio - è cominciata. Poco dopo dell'alba infatti stamani sono iniziate le operazioni necessarie per staccare il relitto dal falso fondale creato per supportarla, su cui la nave si era alzata - di nuovo in posizione verticale dopo tempo - lo scorso settembre. Ed ora il relitto è tornato finalmete a galleggiare. Il rigalleggiamento (per ora solo parziale) è […]
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1:09 PM | Where do the highest-energy cosmic rays originate?
Light is only one way to see the Universe, but it’s the easiest. However, particle astrophysics — using particles like neutrinos or protons — can provide complementary information on some interesting objects in deep space…if we can only figure out where they’re coming from. That’s especially true for the highest-energy cosmic rays, which are protons […]
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12:34 PM | from different countries
i have returned to australia after a recent round of travel to europe.  this venture was scientifically productive, but another interesting sequence of events happened that i didnt realize until they were almost finished.  of course, these events revolved around the world cup! throughout the course of this tournament, i watched an australia game while in australia, an england game while in england, a croatia game from croatia, and the swiss play their quarterfinal match from […]
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11:30 AM | July 14th: Mars Curiosity Mission
Podcaster: The Telescope Man, a.k.a. Joe Lalumia & Kelley Miller
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11:30 AM | What’s the Quicker Solar Weight Loss Plan: Solar Wind, or Nuclear Fusion?
I know this may seem obvious, but … the Sun is big. Really, really big. It’s more than 100 times wider than the Earth, and more than a million Earths would fit inside it. If you could weigh them on a cosmic scale, you’d find the Sun is more than 300,000 times the mass of the Earth! But that last number is dropping. Slowly, over time, the Sun is losing mass. It’s actually doing this in two ways: directly, via its solar wind, and indirectly, by converting mass into energy […]
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11:25 AM | Keys to Rome, la mostra sulla citta di Augusto
Come apparivano strade, palazzi e oggetti nella Roma di 2000 anni fa, quando l'impero guidato da Augusto era al suo apice? Dal prossimo autunno potremo “vivere” più da vicino i fasti del Grande Impero grazie a “Key To Rome, le chiavi di Roma”, una mostra innovativa allestita in 4 punti “cardine” dell'antico Impero. La mostra, tenuta in occasione del bimillenario della morte di Augusto, sarà inaugurata il 23 settembre (compleanno […]
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9:49 AM | NASA Cargo Shipper Launches Capsule to Space Station
A Cygnus cargo ship began a long-delayed, three-day journey to the International Space Station on Sunday following a successful launch aboard Orbital Sciences Corp’s fourth Antares rocket. Continue reading →
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8:00 AM | Guest Post: How Our Pets Domesticated Us
One of the most fascinating tidbits I came across while researching my new book, Citizen Canine: Our Evolving Relationship with Cats and Dogs, concerns the 10,000-year-old village of Shillourokambos. Located on the Mediterranean island of Cyprus, the site was once home to an early farming community whose inhabitants stored grain in stone silos and corralled […]
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7:20 AM | Neonicotinoidi: pericolosi anche per gli uccelli
Nelle zone agricole dove si fa uso degli insetticidi neonicotinoidi non sono a rischio solo api e altri insetti, ma anche gli uccelli. È quanto emerge da uno studio coordinato dall’Institute of Water and Wetland Research della Radboud University, nei Paesi Bassi, pubblicato recentemente su Nature. Analizzando la quantità di uno specifico neonicotinoide (imidacloprid) nelle acque olandesi, i ricercatori hanno infatti evidenziato che più è alta la sua […]
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7:20 AM | Il libro perfetto per l'estate
Andrea Gentile La scienza sotto l'ombrellone Codice Edizioni, 2014, pp. 190, 18 euro Illustrazioni: Alessandro Damin Ordina su Ibs Secondo un sondaggio condotto durante una domenica di giugno presso una piccola spiaggia della costa ligure – indagine non statisticamente significativa e svolta su un campione non rappresentativo ma, crediamo, ugualmente interessante – il libro perfetto da infilare nella borsa per il mare dovrebbe avere queste caratteristiche: essere tascabile, […]
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4:00 AM | Gli astronomi individuano un ‘punto caldo’ cosmico
Esistono varie ipotesi in base alle quali si ritiene che i raggi cosmici super energetici siano generati dai nuclei galattici attivi in cui la materia viene risucchiata da un buco nero supermassiccio che risiede nel nucleo galattico mentre altro materiale viene espulso a velocità relativistiche sotto forma di due getti che emergono dalle regioni nucleari […]
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3:46 AM | Lunar Landing Memories
45 Years Ago On June 16, 1969 the first people to actually set foot on the Moon strapped themselves into a tiny Apollo 11 craft on top of a Saturn V rocket and blasted off. It seems hard to believe that all this time has passed, particularly for those of us who fully expected that within […]
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1:01 AM | Finding an Invisible Star Corpse
An international team of astronomers recently reported a wonderfully strange discovery.  They found the faint, cold "corpse" of a dead star, not by detecting any light from it, but through its gravity grip on another star corpse with which it shares a system.  It's quite a story!To follow it, we need to take a brief excursion into the gruesome deaths of stars.  All stars collapse at the end of their lives, but stars with different amounts of mass (stuff) die differently. […]

July 13, 2014

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7:36 PM | Ep. 350: Space Ship One
SpaceShipOne is the spacecraft created by Scaled Composites to win the $10 million Ansari X-Prize in 2003. It was the first privately built spacecraft to reach 100 km in altitude, twice in two weeks, carrying the equivalent of 3 people. It’s the prototype of the upcoming SpaceShipTwo, created for Virgin Galactic to carry paying passengers [...]
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7:32 PM | Ep. 349: Mercury 7 and How the US Picked the First Astronauts
Before the Apollo Program, there was the Gemini Program, and before Gemini came the Mercury Program. 7 elite astronauts chosen from a pool of military test pilots. How did NASA choose these original 7 men? Ep. 349: Mercury 7 and How the US Picked the First Astronauts Jump to Shownotes Jump to Transcript Show Notes [...]
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6:54 PM | Weekend Diversion: Planetary Beers (Synopsis)
“I’ve learned what ‘classical’ means. It means something that sings and dances through sheer joy of existence.” -Gustav Holst There are some great, creative works out there that take their inspiration from the amazing natural phenomena of this Universe. While perhaps Gustav Holst’s suite, The Planets, is best known for translating the celestial wonders into…
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1:44 PM | The problem of Richard Feynman
[Updated] Very few heroes can survive scrutiny unscathed. They all have flaws, by virtue of being human. However, hero-worship blurs those flaws,  leveling them: truly nasty aspects of a person’s personality or behavior become on par with little quirks and eccentricities. In that way, we justify our worship. If everyone is a little flawed, then […]
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1:26 PM | Various things from New Scientist
Going through a bunch of old-but-not-too-old issues of New Scientist and wanted to make a note of various articles that caught NSB's attention.....Contrails and their effect on temperatureRoger Timmis et al (from the Lancaster Environment Centre, Lancaster University and the Environment Agency, Lancaster Environment Centre) suggest that the contrails created during the forming-up of bomber groups in southern England in WW2 offers an opportunity to compare the temperature of areas under the […]
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11:30 AM | Zzzzzzzap! And Whooooosh!
I missed it when it was originally posted last week, but thanks to IFLS I saw this very cool Vine video taken by International Space Station astronaut Reid Wiseman, showing lightning flashes inside a cloud as he sailed hundreds of kilometers above: If you like the video, I have a few more animations of storms and such as seen from the ISS. Seeing something like that — lightning flashes from above — would almost be worth the body-wracking nausea I’d certainly get if I went into […]
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11:25 AM | July 13th: Fresh Look at a Young Star Cluster
Podcaster: Richard Drumm
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8:32 AM | Cercasi prova contraria al riscaldamento globale
Christopher Keating è un fisico e scrittore statunitense che lancia la sfida agli scettici del riscaldamento globale. Come? Con un premio: riceverà il compenso di 30000 dollari chi per primo produrrà una prova scientifica che neghi l’impronta umana sul fenomeno. La gara ha regole ben precise: per partecipare è necessario essere maggiorenni, ma non occorre avere un’idea originale. Saranno invece premiate tempestività e scientificità della […]
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8:00 AM | Thirty Meter Telescope Science Forum
Thirty Meter Telescope Observatory and NOAO will host the second TMT Science Forum at Loews Ventana Canyon Resort in Tucson, Arizona. The TMT Science Forum is an an annual gathering of astronomers, educators, and observatory staff, who meet to explore TMT science, instrumentation, observatory operations, archiving and data processing, astronomy education, and science, technology, engineering, […]
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