Posts

March 25, 2015

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8:48 AM | Anche le stelle cantano
Un’équipe di ricercatori ha scoperto che nel plasma stellare avviene un meccanismo fisico molto simile all’emissione sonora
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8:00 AM | Behind the Curve
The Keeling Curve—the sawtoothed upward slope of atmospheric carbon-dioxide concentrations—may be the world’s most famous scatter plot. The data that form the curve have been accumulating since the 1950s, when scientist Charles David Keeling set up his instruments at a geophysical observatory high on Mauna Loa, one of the massive volcanoes that form the Big […]
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4:00 AM | Il collasso ‘imminente’ dell’Universo
Alcuni fisici hanno proposto un meccanismo secondo cui il nostro Universo terminerà ad un certo punto la sua espansione ed inizierà a collassare su sé stesso. I calcoli suggeriscono che tale collasso sia “imminente”, almeno su scale di tempo astronomiche, e potrà avvenire tra qualche decina di miliardi di anni. In un articolo pubblicato su … Continue reading Il collasso ‘imminente’ dell’Universo →
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1:39 AM | Could the LHC make an Earth-killing black hole? (Synopsis)
“There is, I believe, in every disposition a tendency to some particular evil, a natural defect, which not even the best education can overcome.” “And your defect is a propensity to hate everybody.” “And yours… is wilfully to misunderstand them.” -Jane Austen Every time we go to higher and higher energies in our particle accelerators,…
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1:39 AM | Could the LHC make an Earth-killing black hole?
Spoiler: NO, not a chance. Now find out why.Continue reading on Medium »

March 24, 2015

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11:57 PM | Rover Champion: Opportunity Rolls a Martian Marathon
It's official, Mars rover Opportunity has completed a marathon on Mars!
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11:00 PM | Nitrogen: Yet Another Building Block for Life Found on Mars
Add nitrogen to the list of potential biological ingredients on Mars sniffed out by NASA’s Curiosity rover.
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10:57 PM | The First Star Clusters
The first stars may have formed in clusters, rather than in isolation as previously thought. What would these clusters look like?
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7:11 PM | LHC Short Circuit Delays Awesome Physics Quest
Unfortunately, an electrical glitch has put the breaks on the Large Hadron Collider's grand reboot this week -- but it's not the end of the world.
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4:52 PM | Rover Opportunity Reformatted to Continue Conquering Mars
Good news from Mars: Rover Opportunity has been uploaded with new software and the memory issues that plagued the mission for several months have been fixed. For now.
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4:26 PM | Sen: Ancient Radioactive Lunar Volcano
For my fortnightly column at Sen.com this go-round, I had a lot of fun writing about an ancient lunar volcano’s explosive eruption eons ago, the extent of which was mapped using gamma rays from radioactive thorium buried under billions of years of impact-produced lunar dust. So yeah, I had a lot of fun. Sometimes just researching an article is pretty cool. As I’ve said before, while the news and other sections at Sen are free, the blogs are subscription only. But if you look at the […]
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2:18 PM | L’erbicida glifosato è probabilmente cancerogeno
Lo ha stabilito l’International Agency for Research on Cancer, inserendo il diserbante sviluppato dalla Monsanto tra le sostanze classificate come probabilmente cancerogene
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11:30 AM | Flying High During a Solar Eclipse
I should know better by now: Whenever I post a bunch of pictures from some astronomical event and say they were the best I saw, someone comes along and proves me wrong. The photo above was taken by frequent BA Blog contributor Geoff Sims, who was flying on a plane chartered to observe the March 20 solar eclipse. (The flight was planned by my old friend and dedicated umbraphilic astronomer Glenn Schneider.) They were over the north Atlantic at 35,000 feet when he took that shot of the eclipsed […]
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11:23 AM | Angelina Jolie, perché si è fatta rimuovere le ovaie
Dopo la mastectomia preventiva, l’attrice ha scelto di rimuovere anche ovaie e tube di Falloppio. Qual era il rischio per lei di ammalarsi di cancro?
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9:52 AM | Infarto: il cuore si rigenera in sette giorni
Una ricerca americana ha indotto la rigenerazione del tessuto muscolare cardiaco in alcune cavie attraverso la somministrazione di microRna sintetico
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8:37 AM | Antibiotici, quanti se ne usano negli allevamenti?
L’aumento del consumo di carne comporterà un incremento degli allevamenti, e dell’uso di antibiotici, e di qui il rischio delle antibiotico-resistenze. Combatterle significa prima capire quanti di questi medicinali si usano
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8:00 AM | Guest Post: Cinderella and the Cinema Hangover
This weekend, I took my five-year-old daughter to her first movie in the theater, the new Cinderella. We got popcorn and Whoppers and great seats. The lights dropped, the previews and Frozen short ran, and then the film began, plunging us into another world. Two hours later, we were both hungover.  This new Cinderella plays […]
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3:00 AM | Come svelare i segreti della materia scura
Un segnale osservato sotto forma di raggi gamma è stato rivelato di recente dal centro della Via Lattea dietro il quale, forse, si potrebbe celare la scoperta che stiamo aspettando da tanto tempo (post1; post2; post3; post4). Se questi raggi-gamma sono davvero prodotti dalle interazioni di particelle di materia scura, allora essi potrebbero fornirci preziosi … Continue reading Come svelare i segreti della materia scura →
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1:00 AM | Astronomy Video of the Week: A Stratospheric Eclipse
A fine partial eclipse as seen from the UK. (Credit and copyright: Blob rana). Our mind has been consistently blown this past weekend as photos continue to pour in of Friday’s total solar eclipse.  We’ve been doing live coverage of eclipses for various venues now for a few years, and it simply amazes us how [...]

March 23, 2015

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11:37 PM | The Radial Velocity Method: Current and Future Prospects
Much of what we know today about exoplanets is due to the success of the radial velocity method. Where does it stand now? What is its future?
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11:00 PM | Finally! A Cocktail Glass Fit for Space Martinis
Astronauts hoping to sip drinks in style may soon have an open-top cocktail glass to look forward to.
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10:19 PM | Prometheus, Pandora, and the braided F ring in motion
Cassini recently took a long, high-resolution movie of the F ring, catching a view of its ringlets, clumps, and streamers, and two potato-shaped moons, Prometheus and Pandora.
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7:00 PM | Jupiter May Have Killed Solar System's Baby Super-Earths
Jupiter's early migration through the inner solar system caused gravitational mayhem, but it ultimately settled to allow Earth to form in a relatively quiet neighborhood.
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6:45 PM | Submillimeter observations finally reveal the enigma of Nova Vulpeculae 1670
This image shows the remnant of CK Vulpeculae (Nova Vul 1670); the image was created from a combination of visible-light images from the Gemini telescope, blue, a submillimeter map showing the dust from the SMA, green, and finally a map of the molecular emission from APEX and the SMA, red. Image credit: ESO / T. […]
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5:51 PM | Ancient Doomsday Asteroid Impact Found in Australia
Two vast underground domes are buried under central Australia that researchers have realized are the scars of the biggest and most powerful asteroid impact yet found on Earth.
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5:32 PM | Pluto Update
New Horizons on the Approach and a Contest to Name Pluto Surface Features It’s exciting to think that we are now just a few weeks away from getting some of the first, clearest, and most detailed images of Pluto. The New Horizons mission will soon be close enough to start returning images similar in scope and [...]
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5:03 PM | Mielofibrosi, ecco il primo farmaco che migliora la sopravvivenza
E' il primo farmaco di una nuova classe che colpisce la mutazione che scatena questo raro tumore del sangue. E oggi è disponibile e rimborsato dal Ssn
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4:00 PM | Bad Astronomy Video: The Pink and Purple Crab
Take equal parts 1) supernova, 2) Hubble Space Telescope, and 3) Herschel infrared observatory. Mix well. What do you get? Purple (and pink) majesty. This video is based on an article I wrote about this observation. And yeah, you want to go take a look; the high-res picture is pretty phenomenal. I love this image of the Crab Nebula, if only because the colors are almost electric. But also because this has been an intensely scrutinized object; people have dedicated their careers to it, and lots […]
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3:00 PM | Desert Moon, Narrated by Former Astronaut Mark Kelly, Now Available Online
Desert Moon, a 35-minute documentary that tells the story of Dr. Gerard Kuiper and the dawn of planetary science, is now available online.
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2:52 PM | Where Are They Now? Steve Hawley
Steve Hawley was the flight engineer on the STS-93 Columbia mission that carried Chandra into space in 1999. Before that he was on four previous shuttle flights, one in 1990 to deploy the Hubble Space Telescope, and one in 1997 to assist in making major upgrades and repairs to Hubble. His role in the deployment of two of the most productive telescopes ever has secured him an important place in the history of astronomy. At a recent symposium celebrating 15 years of Chandra Science, Steve sat […]
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