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Wed, 27 Oct 2021
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Meteor

Early Perseid Fireball

This week, Earth is entering a stream of dusty debris from Comet Swift-Tuttle, the parent of the annual Perseid meteor shower. We're only in the outskirts of the stream now. The shower won't peak until August 12th and 13th when we're much deeper inside. Nevertheless, sky watchers are already seeing some early Perseids. This one, recorded by a NASA meteor camera in Alabama on August 3rd, was a doozy:
Image
© NASA/JPL-Caltech/University of Western Ontario

View movie HERE.

"On Monday night, a Perseid meteoroid, about 1 inch in diameter and traveling at 134,000 mph, entered the atmosphere 70 miles above Paint Rock, Alabama," reports Bill Cooke of NASA's Marshall Space Flight Center. "Moving at such a tremendous speed, the meteor cut a path some 65 miles long above that state, finally burning up 56 miles above Macay Lake. It was 6 times brighter than the planet Venus--a good start to the Perseid meteor shower!"

Eye 1

Human hive-mind game whups computer boffinry ass Alert

Science glory for 57,000 protein-origami Tetris players

Most Reg readers are familiar with the idea of ordinary laypersons contributing computer time to academic research, in distributed computing projects such as SETI@Home. But it turns out that in some kinds of science, human brainpower - not that of trained boffins, but everyday people - can be a much more valuable resource, and can be contributed simply by playing online games.


Saturn

Discovery of Saturn's auroral heartbeat

Image
© Jonathan Nichols, NASA, ESA, University of Leicester
Saturn's ultraviolet auroras are visible over each pole in this image obtained in 2009 using the Advanced Camera for Surveys on board the NASA/ESA Hubble Space Telescope.
Space researchers illuminate 'one of the most perplexing puzzles in planetary science'.

An international team of scientists led by Dr Jonathan Nichols of the University of Leicester has discovered that Saturn's aurora, an ethereal ultraviolet glow which illuminates Saturn's upper atmosphere near the poles, pulses roughly once per Saturnian day.

The length of a Saturnian day has been under much discussion since it was discovered that the traditional 'clock' used to measure the rotation period of Saturn, a gas giant planet with no solid surface for reference, apparently does not keep good time.

Star

Seeing a Stellar Explosion in 3D

Image
© ESA
The material around SN 1987A (artist’s impression)
Astronomers using ESO's Very Large Telescope have for the first time obtained a three-dimensional view of the distribution of the innermost material expelled by a recently exploded star. The original blast was not only powerful, according to the new results. It was also more concentrated in one particular direction. This is a strong indication that the supernova must have been very turbulent, supporting the most recent computer models.

Unlike the Sun, which will die rather quietly, massive stars arriving at the end of their brief life explode as supernovae, hurling out a vast quantity of material. In this class, Supernova 1987A (SN 1987A) in the rather nearby Large Magellanic Cloud occupies a very special place. Seen in 1987, it was the first naked-eye supernova to be observed for 383 years (eso8704), and because of its relative closeness, it has made it possible for astronomers to study the explosion of a massive star and its aftermath in more detail than ever before. It is thus no surprise that few events in modern astronomy have been met with such an enthusiastic response by scientists.

Sherlock

St. John the Baptist's Bones "Found in Bulgarian Monastery"

Image
© The Telegraph
The urn, right, is thought to contain the bones of St. John the Baptist, left
The remains of St John the Baptist have been found in an ancient reliquary in a 5th century monastery on Sveti Ivan Island in Bulgaria, archaeologists have claimed.

The remains - small fragments of a skull, bones from a jaw and an arm, and a tooth - were discovered embedded in an altar in the ruins of the ancient monastery, on the island in the Black Sea.

A Greek inscription on the stone casque contains a reference to June 24 - the date on which John the Baptist is believed to have been born.

"We found the relics of St John the Baptist - exactly what the archaeologists had expected," said Bozhidar Dimitrov, Bulgaria's minister without portfolio and a former director of the country's National History Museum, who was present when the stone urn was opened.

"It has been confirmed that these are parts of his skeleton."

Sherlock

Long-Lost Piano "Played by Mozart" Found in Germany

Image
© The Telegraph
Wolfgang Amadeus Mozart (1756-91)
An early piano believed to have been played by Wolfgang Amadeus Mozart has surfaced in Germany and could be worth millions of pounds.

Public broadcaster SWR said the instrument was built in 1775 and acquired in the 1980s by piano manufacturer Martin Becker in the southern German city of Baden-Baden from an antiques dealer in Strasbourg, eastern France.

When Mr Becker decided to auction off the fortepiano, a music historian noticed the offer and "had a hunch that it could be the same long-lost instrument that Mozart played whenever he was in Strasbourg," SWR said.

"I had the idea to offer it on (online auction site) eBay and maybe get between 30,000 and 40,000 euros for it," Mr Becker told the radio station.

A historic oil painting in Vienna shows the composer Joseph Haydn, a Mozart contemporary, playing what may be the same instrument.

Sun

Northern Lights Move South

Image
© Robert Snache
Usually, the Northern Lights can only be seen by folks who live far to the north. But this week, the Aurora Borealis is making an appearance in lower Canada, some of the United States, Norway and other countries around the globe.

The reason has to do with solar storms. On Sunday, an eruption on the sun's surface blasted plasma toward the Earth. That plasma is helping to give millions of people a peek at something they'd never seen.

Fortunately for us, these lucky ducks are taking pictures and posting them on Flickr. You can check out several of our absolute favorites here. Enjoy!

Sun

Solar Storm Update: Best Times for Viewing Aurorae

Image
© SOHO
Taken Sunday, August 1 by NASA's Solar Dynamics Observatory.
The Harvard Smithsonian Center for Astrophysics released the latest information on the July 31/August 1 activity on the Sun that is just now reaching Earth. They predict we'll have multiple opportunities for a display of the Northern Lights over the next two days. The latest word from the solar scientists is that the Sun erupted not just once, but four times. All four coronal mass ejections are headed toward Earth.

Space weather forecasts are even more challenging than regular weather forecasts, said Dr. Leon Golub, and a coronal mass ejection is like a hurricane: it's large and fuzzy, and doesn't always move at the same speed. Currently, the estimated arrival times are:
  • Wednesday, Aug. 4 - 3:00 a.m. EDT (0700 GMT on Aug. 5; aurorae not visible in daylight)
  • Wednesday, Aug. 4 - 1:00 p.m. EDT (1600 GMT, again the daylight issue)
  • Wednesday, Aug. 4 - 8:00 p.m. EDT (0000 GMT on Aug. 5)
  • Thursday, Aug. 5 - 2:00 a.m. EDT (0600 GMT)
Any one of these events may or may not generate an aurora. It depends on details like magnetic field orientation. If the magnetic field in the oncoming solar plasma is directed opposite Earth's magnetic field, the result could be spectacular aurorae. If the fields line up, the coronal mass ejection could slide past our planet with nary a ripple.

The Center for Astrophysics suggested these two resources:

Map of current auroral activity

Chart of proton flux (watch for the numbers to go up as each wave arrives)

Blackbox

Size isn't everything: The big brain myth

Image
© Dave Plunkert
It's time to rethink the idea that our 'big' brains make us special
What's so special about the human brain? It turns out that we're no better endowed between the ears than you would expect for a primate of our size

Oversized brains are to humans what trunks are to elephants and elaborate tail feathers are to peacocks - our defining glory. What would we be without our superlative, gargantuan, neuron-packed brains? Like Donald Trump without his towers, Simon Cowell without his sneering put-downs or Bridget Jones without her diaries. We would just be ordinary primates. Unquestionably smart ones, of course, just not special.

Uncomfortable as it is to contemplate, it is looking increasingly likely that our brains are not something to write home about after all. One group of researchers has scrutinised the primate archaeological record and concluded that the human brain has evolved just as would be expected for a primate of our size. Meanwhile, a biologist who has compared the number of neurons in the brains of all sorts of animals says there is nothing special about the human brain compared with other primates. No one is doubting the fact of human intelligence, but they say it can no longer be attributed to a "supersized" brain. Humans, apparently, are no more than ordinary primates with ordinary-sized brains.

These findings undermine a fundamental and long-standing belief about our place in the kingdom of life: that Homo sapiens is the greatest species ever to grace the Earth and that we have become the greatest because our brains are the best ever to have evolved. Admittedly, justifying this assertion has taxed our self-professed ingenuity. Clearly ours is not the biggest brain on the planet in absolute terms - whales and elephants outdo us by up to six times - but we counter this by arguing that bigger animals are bound to have bigger brains. And if you take body size into account our brain is exceptionally large, as much as seven times larger than those of other mammals (Science, vol 121, p 447). The underlying assumption is still that when it comes to intelligence, brain size matters. But does it?

Magnify

Ancient fossil find may change human history in Philippines

Image
© AFP
* Dr Armand Mijares, an archaeologist from the University of the Philippines, shows a 67,000-year-old foot bone which was unearthed from an extensive cave network in the northern Philippines in 2007.
Manila: A team of archaeologists have found a 67,000-year-old foot bone in northern Luzon, and hailed it as the oldest fossil found in the Asia-Pacific region, a television news report said.

"So far this could be the earliest human fossil found in the Asia-Pacific region. The presence of humans in Luzon shows these early humans already possessed knowledge of seacraft-making in this early period," Dr Armand Mijares, leader of a team of archaeologists from the University of the Philippines that found the fossil in Callao Cave in Cagayan Province, northern Luzon, told GMA-7.

The bone, found in an extensive cave network, predates the 47,000-year-old Tabon Man that is previously known as the first human to have lived in the country, said Taj Vitales, a researcher with the Philippina national museum's archaeology section.

"This would make it the oldest human remains ever found in the Philippines," Vitales told AFP.