Science & TechnologyS


Meteor

Traces of 'sonic boom' meteorites found in ocean off Washington State

Meteorite fragments of the coast of WA
© Mark Fries/NASA
The first mission designed to hunt a meteorite that crashed into the ocean has now discovered what may be tiny fragments of the meteorite's crust, researchers say.

On March 7, three National Oceanic and Atmospheric Administration (NOAA) weather stations detected the fall of a meteorite about 15.5 miles (25 kilometers) off the coast of Washington state. "The fall was widely seen around local areas and widely heard around local areas - it came with some loud sonic booms," Marc Fries, the cosmic dust curator for NASA, told Live Science.

Fries estimated this fall might yield about 4,400 lbs. (2,000 kilograms) of meteorites. He also calculated the largest meteorite might weigh about 9.7 lbs. (4.4 kg) and have a diameter of about 5 inches (12 centimeters).

"This is the largest meteorite fall I've seen in 20-plus years of radar data," Fries said.

Comment: See also: Meteor fireball reported in the sky over Western Washington - UPDATE


Info

Something massive struck Uranus claims new paper

Planet Uranus
© ESA/HubbleTwo views of Uranus.
You might be aware of one of Uranus' complexities: It spins on its side, and its moons orbit on that same rotated plane. New evidence strengthens the case that Uranus was smashed in a giant collision, resulting in its sideways orientation to its orbital plane and perhaps explaining some of the planet's other mysteries.

A new paper performs a series of simulations on Uranus early in its history, taking note of what an early impact may have done to its rotation rate, atmosphere and internal structure. The impact could have left a clear signature still visible inside the planet we see today.

Uranus really is strange. Not only does it rotate on an axis that sits at a 98-degree angle to its orbital plane, but, unlike the other giant planets, it doesn't appear to release more heat than it receives from the Sun. Its magnetic field, too, appears warped compared to the Earth's.

An impact could perhaps help explain some of these strange traits.

Scientists have been simulating giant impacts into Uranus since the early 1990s, according to the new paper published in the Astrophysical Journal.

Fireball 4

Comet PANSTARRS (C/2017 S3) atmosphere bursts into green and continues to expand on its approach to the sun

Comet PANSTARRS (C/2017 S3)
C/2017 S3 Panstarrs RGBnew Taken by michael jäger on July 2, 2018 @ Weißenkirchen Austria
A comet that could become visible to the naked eye in August has just exploded in brightness. Amateur astronomer Michael Jäger‎ of Austria reports that Comet PANSTARRS (C/2017 S3) brightened 16-fold during the late hours of July 2nd, abruptly increasing in magnitude from +12 to +9. He took this picture of the comet's expanding green atmosphere shortly after the outburst: "The gas cloud around the comet's nucleus is about 4 arc minutes wide," says Jäger‎. That means the comet's atmosphere is 260,000 km in diameter, almost twice as wide as the planet Jupiter. These dimensions make it a relatively easy target for backyard telescopes.

Comet PanSTARRS is falling toward the sun from the Oort cloud, a vast reservoir of fresh comets in the distant outer solar system. It has never visited the inner planets before, and, as a result, no one can say what will happen when its fragile ices are exposed to solar heat as it approaches the sun in August. Previous estimates of the comet's brightness max out at magnitude +4--that is, barely visible to the unaided eye from dark-sky sites. Additional outbursts could boost its visibility even more.

Comment: Mainstream science does not fully understand the nature of comets, or their potential threat to our planet. For more, see: Also check out SOTT radio's:


Horse

New study: As early as 3,200 years ago, Mongolians were adept at horse dentistry

Horse tooth extraction
© DIMITRI STASZEWSKIEXTRACTION ACTION A Mongolian herder removes a first premolar tooth from a young horse using a screwdriver. Mongolian herders invented a comparable procedure nearly 2,800 years ago so that horses could safely hold metal bits in their mouths while being ridden, a new report concludes.
Equine tooth extractions evolved to make way for a riding bit, making mounted warfare possible

Mongolian pastoralists were trying to remove troublesome teeth from horses' mouths almost 3,200 years ago, making those mobile herders the earliest known practitioners of horse dentistry, a new study finds.

Those initial, incomplete tooth removals led to procedures for extracting forward-positioned cheek teeth known as first premolars from young horses, say archaeologist William Taylor and his colleagues. That dental practice, which dates to as early as about 2,800 years ago, coincided with the appearance in Mongolia of metal bits that made it easier for riders to control horses, the researchers report the week of July 2 in the Proceedings of the National Academy of Sciences. Long-distance travel and mounted warfare with sedentary civilizations across Asia soon followed.
horse teeth pics
© W.T.T. TAYLOR ET AL/PNAS 2018Tooth be gone
Evidence of first premolar extraction appeared in an empty tooth socket, right (black arrow), of a Mongolian horse from between around 2,300 and 2,700 years ago. A Mongolian horse from roughly 3,000 years ago, left, retains its first premolar (white arrow), indicating that the dental procedure was not yet in use.

Cassiopaea

NASA: Gigantic double-star system blasting cosmic radiation in Earth's direction

An image of Eta Carinae.
© ESA/NASA / NASAAn image of Eta Carinae.
A star system containing two gigantic suns is blasting cosmic rays into space and NASA scientists have found that the radiation is making its way towards Earth on intergalactic winds.

High-energy observations in the sprawling southern constellation of Carina had puzzled scientists for some time. But now a NASA orbital telescope has helped pin the energy source on Eta Carinae, a double-star system around 7,500 light years away from Earth.

It is already known that rays with energies greater than 1 billion electron volts are sprayed into our solar system. However, the erratic movement of the energy and sheer size of the great expanse previously made it difficult to locate some of the sources. Colliding stellar winds within Eta Carinae, which is surrounded by an hourglass dust nebula, have now been confirmed as a reason for the energy patterns in the region.

Comment: There is already evidence showing that a rise in cosmic rays reaching our atmosphere leads to increased cloud cover, resulting in a change in weather patterns, as well as more speculative theories regarding an influence on volcanoes, earthquakes and even human biology. And so with the decreasing strength of Earth's magnetic field during one of the lowest solar minimum's ever recorded, meaning more cosmic rays penetrating our planet, and likely the others in our solar system too, one wonders what this recent blast has in store for humanity?



Galaxy

Celestial fireworks: NASA releases stunning image of "young" stars

celestial fireworks
© NASA
Like a July 4 fireworks display, a young, glittering collection of stars resembles an aerial burst. The cluster is surrounded by clouds of interstellar gas and dust - the raw material for new star formation. The nebula, located 20,000 light-years away in the constellation Carina, contains a central cluster of huge, hot stars, called NGC 3603.

Appearing colorful and serene, this environment is anything but. Ultraviolet radiation and violent stellar winds have blown out an enormous cavity in the gas and dust enveloping the cluster. Most of the stars in the cluster were born around the same time but differ in size, mass, temperature and color. The course of a star's life is determined by its mass, so a cluster of a given age will contain stars in various stages of their lives, giving an opportunity for detailed analyses of stellar life cycles. NGC 3603 also contains some of the most massive stars known. These huge stars live fast and die young, burning through their hydrogen fuel quickly and ultimately ending their lives in supernova explosions.

Eye 2

Big brother: Google lets 3rd-party app developers read your emails

google with laptops
© Dado Ruvic / Reuters
Google allows third-party app developers to read its customers' Gmail emails, a new report reveals, throwing a damper on its claims that it protects its users' privacy.

According to a report by the Wall Street Journal, the tech giant continues to let hundreds of developers read people's emails. Any of Gmail's 1.3 billion users who have connected their email addresses to apps may have unknowingly given those apps permission to read their communications.

The Wall Street Journal spoke to a number of companies that said they had read people's emails. Those included Edison Software, eDataSource Inc and Return Path.

Comment: See more:


UFO 2

Former NASA physicist says we should take seriously the idea that UFOs may be 'alien' visitors

U.S. military footage of Tic Tac UFO encounters
This image is from U.S. military footage of the Tic Tac.
Are we alone? Unfortunately, neither of the answers feel satisfactory. To be alone in this vast universe is a lonely prospect. On the other hand, if we are not alone and there is someone or something more powerful out there, that too is terrifying.

As a NASA research scientist and now a professor of physics, I attended the 2002 NASA Contact Conference, which focused on serious speculation about extraterrestrials. During the meeting a concerned participant said loudly in a sinister tone, "You have absolutely no idea what is out there!" The silence was palpable as the truth of this statement sunk in. Humans are fearful of extraterrestrials visiting Earth. Perhaps fortunately, the distances between the stars are prohibitively vast. At least this is what we novices, who are just learning to travel into space, tell ourselves.

I have always been interested in UFOs. Of course, there was the excitement that there could be aliens and other living worlds. But more exciting to me was the possibility that interstellar travel was technologically achievable. In 1988, during my second week of graduate school at Montana State University, several students and I were discussing a recent cattle mutilation that was associated with UFOs. A physics professor joined the conversation and told us that he had colleagues working at Malmstrom Air Force Base in Great Falls, Montana, where they were having problems with UFOs shutting down nuclear missiles. At the time I thought this professor was talking nonsense. But 20 years later, I was stunned to see a recording of a press conference featuring several former US Air Force personnel, with a couple from Malmstrom AFB, describing similar occurrences in the 1960s. Clearly there must be something to this.

With July 2 being World UFO Day, it is a good time for society to address the unsettling and refreshing fact we may not be alone. I believe we need to face the possibility that some of the strange flying objects that outperform the best aircraft in our inventory and defy explanation may indeed be visitors from afar - and there's plenty of evidence to support UFO sightings.

Cell Phone

It's not a conspiracy theory - your phone is really watching & listening to you, research finds

Cell phone
© Phil Noble / Reuters
If you've ever had the sneaking suspicion that your phone might be watching you, new research suggests you're not being paranoid.

Research scientists at Northwestern University in Boston spent a year trying to determine whether or not smartphone applications are secretly recording our private conversations to send personal data to advertisers.

Fortunately, the researchers did not find any evidence to support that long-held theory. They did, however, stumble upon another disturbing piece of information: While your phone might not be listening to you, it is watching you.

The study confirms that smartphone applications are recording video footage of our screens and taking screenshots of our activity and then passing those screen recordings on to third parties. The surreptitious filming even captures the users' personal information - sometimes even their postcodes.

Cassiopaea

Is there a connection between cosmic rays, earthquakes and volcanic eruptions?

cosmic rays
Scientists have detected a correlation between historic solar minima, volcanic activity, sun spots and climate change.

But taking the concept further, it does appear that cosmic impacts could trigger seismic activity causing earthquakes and volcanic eruptions.

John L Casey and his fellow authors examine the history of earth quakes during solar minimums in 'Upheaval!: Why Catastrophic Earthquakes Will Soon Strike the United States' (Casey, Choi,Tsunoda & Humlum (January 2017).
"The authors make a strong case for grand minimums being a causal factor in triggering these strong quakes."
Volcanic activity may be attributed to the increase in Galactic Cosmic Rays penetrating deep into silica rich volcanoes. Several studies have shown this correlation along with historical evidence.

Comment: Correlation clearly does not equal causation but there does appear to be a link with all these phenomena and the increasingly erratic behaviour of weather and geologic activity on our planet: Also check out SOTT radio's: Behind the Headlines: Earth changes in an electric universe: Is climate change really man-made?