Starman's Meanderings
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Cosmic Inflation’s Five Great Predictions — Starts With A Bang! — Medium

Cosmic Inflation's Five Great Predictions - Starts With A Bang! - Medium
A “speculative” theory no more; it’s had four of them confirmed.
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Three-decade quest backs physics' 'Standard Model'

Three-decade quest backs physics' 'Standard Model' | Starman's Meanderings | Scoop.it
Scientists on Wednesday said that after a nearly three-decade bid they had detected a telltale change in a sub-atomic particle, further backing a key theory about the Universe.
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Dark Matter May Be Less Mysterious Than We Thought

Dark Matter May Be Less Mysterious Than We Thought | Starman's Meanderings | Scoop.it
Unlike ordinary particles, dark matter seems to feel only gravity, not the other forces of nature. But new observations show that might not be true after all
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Earthquake faults identified in surge of Oklahoma quakes - GeoSpace - AGU Blogosphere

Earthquake faults identified in surge of Oklahoma quakes - GeoSpace - AGU Blogosphere | Starman's Meanderings | Scoop.it
Study finds faults behind 1000s of quakes in Oklahoma since seismic activity picked up in 2009 and danger of yet bigger quakes than those of past 5 years.
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How far is Betelgeuse? | EarthSky.org

How far is Betelgeuse? | EarthSky.org | Starman's Meanderings | Scoop.it
Finding star distances isn't easy. Here's how it's done, and why astronomers recently modified the distance estimate to the famous star Betelgeuse.
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Scientists predict Earth-like planets around most stars

Scientists predict Earth-like planets around most stars | Starman's Meanderings | Scoop.it
Planetary scientists have calculated that there are hundreds of billions of Earth-like planets in our galaxy which might support life, by applying a 200 year old idea to the thousands of exo-planets discovered by the Kepler space telescope.
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A spin-down clock for cool stars from observations of a 2.5-billion-year-old cluster : Nature : Nature Publishing Group

A spin-down clock for cool stars from observations of a 2.5-billion-year-old cluster : Nature : Nature Publishing Group | Starman's Meanderings | Scoop.it
The ages of the most common stars[mdash]low-mass (cool) stars like the Sun, and smaller[mdash]are difficult to derive because traditional dating methods use stellar properties that either change little as the stars age or are hard to measure. The rotation rates of all cool stars decrease substantially with time as the stars steadily lose their angular momenta. If properly calibrated, rotation therefore can act as a reliable determinant of their ages based on the method of gyrochronology. To calibrate gyrochronology, the relationship between rotation period and age must be determined for cool stars of different masses, which is best accomplished with rotation period measurements for stars in clusters with well-known ages. Hitherto, such measurements have been possible only in clusters with ages of less than about one billion years, and gyrochronology ages for older stars have been inferred from model predictions. Here we report rotation period measurements for 30 cool stars in the 2.5-billion-year-old cluster NGC 6819. The periods reveal a well-defined relationship between rotation period and stellar mass at the cluster age, suggesting that ages with a precision of order 10 per cent can be derived for large numbers of cool Galactic field stars.
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"Waiting on Forever" from Arkansas Sky Observatories

"Waiting on Forever" from Arkansas Sky Observatories | Starman's Meanderings | Scoop.it
Arkansas Sky Observatory is designated codes H41 (Petit Jean), H44 (Cascade Mtn.), H43 (Conway) and H45 (Petit Jean South) from the Harvard Minor Planet Center and Central Bureau of Astronomical Telegrams. Celebrating its 34th year in serving astronomers and the astronomical community,
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What Is The Biggest Thing in The Universe?

What Is The Biggest Thing in The Universe? | Starman's Meanderings | Scoop.it
Think big. Really big. Like, cosmic big. How big can things in the Universe get? Is a galaxy big? What about a supercluster? What is the biggest thing in t
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Tornado Alley storm season starting and ending earlier | EarthSky.org

Tornado Alley storm season starting and ending earlier | EarthSky.org | Starman's Meanderings | Scoop.it
Peak tornado activity typically occurs in the region from early May to early July. It has moved an average of seven days earlier over the past six decades.
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Why sugar is worse than fat

Watch "Fareed Zakaria GPS," Sundays at 10 a.m. and 1 p.m. ET on CNN

Fareed speaks with CNN Chief Medical Correspondent Sanjay Gupta about recent research on the risks of high sugar consumption. Watch the video for the full interview.
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Betelgeuse: The Clock Is Ticking, and the Alarm is Set for 100,000 Years.

Betelgeuse: The Clock Is Ticking, and the Alarm is Set for 100,000 Years. | Starman's Meanderings | Scoop.it
If there’s one star in the sky people know about, it’s Betelgeuse*. Marking the right shoulder of the hunter Orion — remember, he’s facing us, so it’s on our left — this orange-red star is one of the brightest in the night sky. It’s been studied for as long as we’ve had...
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A permanent, asymmetric dust cloud around the Moon : Nature : Nature Publishing Group

A permanent, asymmetric dust cloud around the Moon : Nature : Nature Publishing Group | Starman's Meanderings | Scoop.it
Interplanetary dust particles hit the surfaces of airless bodies in the Solar System, generating charged and neutral gas clouds, as well as secondary ejecta dust particles. Gravitationally bound ejecta clouds that form dust exospheres were recognized by in situ dust instruments around the icy moons of Jupiter and Saturn, but have hitherto not been observed near bodies with refractory regolith surfaces. High-altitude Apollo 15 and 17 observations of a /`horizon glow/' indicated a putative population of high-density small dust particles near the lunar terminators, although later orbital observations yielded upper limits on the abundance of such particles that were a factor of about 104 lower than that necessary to produce the Apollo results. Here we report observations of a permanent, asymmetric dust cloud around the Moon, caused by impacts of high-speed cometary dust particles on eccentric orbits, as opposed to particles of asteroidal origin following near-circular paths striking the Moon at lower speeds. The density of the lunar ejecta cloud increases during the annual meteor showers, especially the Geminids, because the lunar surface is exposed to the same stream of interplanetary dust particles. We expect all airless planetary objects to be immersed in similar tenuous clouds of dust.
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Astroboffins eyeball MONSTER GAS HALO hugging Andromeda Galaxy

Astroboffins eyeball MONSTER GAS HALO hugging Andromeda Galaxy | Starman's Meanderings | Scoop.it
Does our own Milky Way have a similar disk of light?
Larry C. Sessions's insight:

What up with word "boffin" or "astroboffin" as we have here? I first recall hearing (or rather reading) it just some months ago. Boffin sounds like some kind of bird. Is it the same as a "maven," which I think is Yiddish and proabably much older. Does it mean a expert or just an enthusiast or what? (I've looked it up, but still am not sure.)

 

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Vintage Micro: The First Interplanetary Probe | Drew Ex Machina

Vintage Micro: The First Interplanetary Probe | Drew Ex Machina | Starman's Meanderings | Scoop.it
Scientific research, news and ponderings from the mind of Andrew LePage.
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Anti-Science 'Skeptics' Are Not Skeptics. They Are Incredibly Willing to Believe BS. | RealClearScience

Anti-Science 'Skeptics' Are Not Skeptics. They Are Incredibly Willing to Believe BS. | RealClearScience | Starman's Meanderings | Scoop.it
Being a
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Betelgeuse will explode someday | EarthSky.org

Betelgeuse will explode someday | EarthSky.org | Starman's Meanderings | Scoop.it
Someday, the star Betelgeuse will run out of fuel, collapse under its own weight, and then rebound in a spectacular supernova explosion. Someday ... but probably not soon.
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A New Way to Reach Mars Safely, Anytime and on the Cheap

A New Way to Reach Mars Safely, Anytime and on the Cheap | Starman's Meanderings | Scoop.it
Ballistic capture, a low-energy method that has coasted spacecraft into lunar orbit, could help humanity visit the Red Planet much more often
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Asteroid impacts may have sparked life on Earth | Science News for Students

Asteroid impacts may have sparked life on Earth | Science News for Students | Starman's Meanderings | Scoop.it
The energy produced by comets and asteroids that collide with Earth may have been strong enough to start life.
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Researchers Find Significant Link to Daily Physical Activity, Vascular Health

Even a few days of inactivity can decrease function in certain blood vessels
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To Save the Planet, Don’t Plant Trees

To Save the Planet, Don’t Plant Trees | Starman's Meanderings | Scoop.it
Reforestation might seem like a simple solution to climate change, but the science shows it could make global warming worse.
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"Significant auroras predicted for tonight" | EarthSky.org | 09/12/14

"Significant auroras predicted for tonight" | EarthSky.org | 09/12/14 | Starman's Meanderings | Scoop.it

Colin Chatfield near Saskatoon, SK, Canada captured this aurora Friday morning. Taken with a Canon 7D and Tokina 10-17mm fisheye lens at 10mm, f/3.5, 20 sec exp, ISO 800. Visit Colin Chatfield on Facebook.


Via Franklin Delano Williams
Larry C. Sessions's insight:

Nice shot

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Franklin Delano Williams's curator insight, September 12, 2014 9:55 PM

....Check out Chatfield's Facebook page (https://www.facebook.com/astronuts?fref=photo) tomorrow.  He should have more pics up then.

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Cockroaches: The insect we're programmed to fear

Cockroaches: The insect we're programmed to fear | Starman's Meanderings | Scoop.it
Why are we so revolted by roaches? Rachel Nuwer visits her own personal insect hell to find out, and discovers a disturbing truth about these creatures.
Larry C. Sessions's insight:

Oh, yes. I hate cockroaches, and feel lucky to live today where they are uncommon.

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