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‘Cannibal’ coronal mass ejection will hit Earth at nearly 2 million mph, scientists say

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The dazzling northern lights could light up the skies as far south as the northern United States after the detection of 17 solar eruptions blasting from a single sunspot, two of which are headed straight to Earth.

The two Earth-directed eruptions have merged into a “cannibal coronal mass ejection” and are barreling toward us at 1,881,263 mph (3,027,599 km/h). When it crashes into the Earth’s magnetic field, beginning from the night of March 30 through to April 1, the result will be a powerful G3 geomagnetic storm, according to The National Oceanic and Atmospheric Administration’s Space Weather Prediction Center (SWPC). G3 storms are classified as strong geomagnetic storms, meaning that the oncoming sun blast could bring the aurora as south as Pennsylvania, Iowa and Oregon.

The sunspot, called AR2975, has been shooting out flares of electrically charged particles from the sun’s plasma soup since Monday (March 28). Sunspots are areas on the sun’s surface where powerful magnetic fields, created by the flow of electrical charges, knot into kinks before suddenly snapping. The resulting release of energy launches bursts of radiation called solar flares, or explosive jets of solar material called coronal mass ejections (CMEs). 

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Click the link below for the article:

https://www.livescience.com/cannibal-coronal-mass-ejection-inbound?utm_source=pocket_discover

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You’ve probably never heard of terahertz waves, but they could change your life

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The spectrum covers everything from radio waves and microwaves to the light that reaches our eyes, to X-rays and gamma rays. And humans have mastered the art of sending and receiving almost all of them. There is an exception, however. Between the beams of visible light and the blips of radio static, there lies a dead zone where our technology isn’t effective. It’s called the terahertz gap. For decades now, no one’s succeeded in building a consumer device that can transmit terahertz waves.

“There’s a laundry list of potential applications,” says Qing Hu, an electrical engineer at MIT.

But some researchers are slowly making progress. If they stick the landing, they might open up a whole new suite of technologies, like the successor to Wi-Fi or a smarter detection system for skin cancer.

Look at the terahertz gap as a borderland. On the left side, there are microwaves and longer radio waves. On the right side lies the infrared spectrum. (Some scientists even call the terahertz gap “far infrared.”) Our eyes can’t see infrared, but as far as our technologies are concerned, it’s just like light.

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Terahertz laser setup with green lights and silver machinery in a dark roomEngineers from Harvard, MIT, and the US Army created this experimental terahertz laser setup in 2019. They are among the few to do so. Arman Amirzhan, Harvard SEAS

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Click the link below for the article:

https://www.popsci.com/science/terahertz-waves-future-technologies/?utm_source=pocket_discover

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Sani Pass

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Sani Pass is a mountain pass located in the West of KwaZulu-Natal, South Africa on the road between Underberg, KwaZulu-Natal, and Mokhotlong, Lesotho. The route up Sani Pass starts at 1,544 metres (5,066 ft), and climbs 1,332 m (4,370 ft) to an altitude of 2,876 m (9,436 ft). The steep gravel road has gradients up to 1:3, which can be difficult to drive in bad weather and may be covered with snow and ice in winter. By South African law, only 4×4 vehicles are allowed on the road. Several tour operators run guided tours up and down the pass. The pass lies between the border controls of both countries and is approximately 9 km in length. Caution must be exercised and motorists must be alert while navigating the pass as it has claimed many lives. Occasionally the remains of vehicles that did not succeed in navigating the pass’s steep gradients and poor traction surfaces can be seen.

The Sani Pass dirt road will be upgraded in two phases; phase 1 extending for 14 km from the P318 (Sani Pass) turnoff and finishing at the old Good Hope Trading Post, and phase 2 extending from kilometer 14 to kilometer 33, the summit of Sani Pass. Construction work for the first phase commenced in December 2006 and was completed in September 2012.

An economic impact study for phase 2 was compiled in August 2011. and its environmental impact assessment was compiled in October 2011. On 2 July 2013, the South African Department of Environmental Affairs and Tourism approved the execution of phase 2 of the project, with the ultimate objective to re-gravel the final 5 km of the pass. The department also authorized plans to upgrade the storm-water drainage system and retaining walls along the route to reduce sand and gravel erosion.

On 21 May 2014 the South African Environmental Affairs Minister, Edna Molewa, approved the execution of phase 2. Tarring was planned to start within five months following the announcement and would bring the total cost of the project to R887-million. In July 2015 it was stated that phase 2 shall be completed in 2019. As of August 2018, there was no timeline for phase 3.

As of May 2021, the third phase had yet to start, and the finishing of phase 2 was largely, but not entirely complete.

While South African emigration at the bottom of the pass prohibits vehicles deemed unsuitable for the journey, the Lesotho border agents at the summit generally allow vehicles of all types to attempt the descent. The pass is often closed due to adverse weather conditions, especially during winter. Wikipedia

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An image of Sani Pass SouthAfrica

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An interstellar object exploded over Earth in 2014, declassified government data reveal

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A fireball that blazed through the skies over Papua New Guinea in 2014 was actually a fast-moving object from another star system, according to a recent memo released by the U.S. Space Command (USSC).

The object, a small meteorite measuring just 1.5 feet (0.45 meter) across, slammed into Earth‘s atmosphere on Jan. 8, 2014, after traveling through space at more than 130,000 mph (210,000 km/h) — a speed that far exceeds the average velocity of meteors that orbit within the solar system, according to a 2019 study of the object published in the preprint database arXiv.

That 2019 study argued that the wee meteor’s speed, along with the trajectory of its orbit, proved with 99% certainty that the object had originated far beyond our solar system — possibly “from the deep interior of a planetary system or a star in the thick disk of the Milky Way galaxy,” the authors wrote. But despite their near certainty, the team’s paper was never peer-reviewed or published in a scientific journal, as some of the data needed to verify their calculations was considered classified by the U.S. government, according to Vice.

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A fireball that flared over Earth in 2014 was actually a rock from another star systemA fireball that flared over Earth in 2014 was actually a rock from another star system (Image credit: Vadim Sadovski/Shutterstock)

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Click the link below for the article:

https://www.livescience.com/first-interstellar-object-detected?utm_source=pocket_discover

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Scientists find fossil of dinosaur ‘killed on day of asteroid strike’

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Argentina Places

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Argentines are people identified with the country of Argentina. This connection may be residential, legal, historical, or cultural. For most Argentines, several (or all) of these connections exist and are collectively the source of their being Argentine.

Argentina is a multiethnic and multilingual society, home to people of various ethnic, religious, and national origins, with the majority of the population made up of Old World immigrants and their descendants. As a result, Argentines do not equate their nationality with ethnicity, but with citizenship and allegiance to Argentina. Aside from the indigenous population, nearly all Argentines or their ancestors immigrated within the past five centuries. Among countries in the world that have received the most immigrants in modern history, Argentina, with 6.6 million, ranks second to the United States (27 million), and ahead of other immigrant destinations such as Canada, Brazil, and Australia.

Argentina is a multiethnic society, which means that it is home to people of many different ethnic backgrounds. Argentina is a melting pot of different peoples.

In the mid-19th century a large wave of immigration started to arrive in Argentina due to new Constitutional policies that encouraged immigration, and issues in the countries the immigrants came from, such as wars, poverty, hunger, and famines. The main immigration sources were from Europe, the countries from the Near and the Middle East, Russia, and Japan. Eventually, Argentina became the country with the second-largest number of immigrants in the period, with 6.6 million, second only to the United States with 27 million.

Therefore, most Argentines are of European descent (with a significant Native component), and are either descendants of colonial-era settlers and/or of the 19th and 20th-century immigrants from Europe, with about 65% of the population being of ethnic European descent.

The most common ethnic groups are a mix between Spanish (including Galicians and Basques), Italian and Native American. It is estimated that up to 30 million Argentines, up to 62.5% of the total population, have Italian ancestry, wholly or in part. There are also some Germanic, Slavic, Irish, and French populations. Smaller Jewish, Arab, Asian, Romani, and African communities contribute to the melting pot.

Immigration of recent decades includes mainly Paraguayans, Bolivians, and Peruvians, among other Latin Americans, Eastern Europeans, Africans, and Asians. Wikipedia

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An image from Argentina

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See The Jaw-Dropping New 83 Megapixel Photo Of The Sun Sent Back From A Spacecraft Halfway There

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If you only look at one “space photo” this year then this one has to be it.

Here it is to download—the Sun, our life-giver, in stunning 83-megapixel glory. You can zoom in like never before to see a close-up its filaments and flares.

Taken from halfway between Earth and the Sun, it was created on March 7, 2022, by the camera onboard the European Space Agency’s Solar Orbiter spacecraft.

A mosaic of 25 individual 10-minute exposures taken one after the other, it took the spacecraft four hours to create it.

The image measures a whopping 9148 x 9112 pixels. That’s 83 megapixels. For comparison, a 4K TV has 3840 x 2160 pixels, which is 8 megapixels.

Here’s that image (though you need to download the bigger version to appreciate how detailed it is).

Not at all surprisingly it’s the highest resolution image of the Sun’s full disc ever taken, though special cameras were used so it could also include its outer, hotter atmosphere, the solar corona that’s normally only visible during a total solar eclipse on Earth.

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The European Space Agency’s Solar Orbiter has returned an incredible 83-megapixel image of the Sun.  ESA/ATG medialab

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Click the link below for the article:

https://www.forbes.com/sites/jamiecartereurope/2022/04/02/see-the-jaw-dropping-new-83-megapixel-photo-of-the-sun-sent-back-from-a-spacecraft-halfway-there/?utm_source=pocket_discover&sh=41edc4ab2507

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New Revelations Raise Pressure on NASA to Rename the James Webb Space Telescope

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Sadness. Disappointment. Frustration. Anger. These are some of the reactions from LGBTQ+ astronomers over the latest revelations regarding NASA’s decision not to rename the James Webb Space Telescope (JWST), given that the agency long had evidence suggesting its Apollo-era administrator James Webb was involved in the persecution of gay and lesbian federal employees during the 1950s and 1960s.

The new information came to light late last month when nearly 400 pages of e-mails were posted online by the journal Nature, which obtained the exchanges under a Freedom of Information Act (FOIA) request. Since early last year, four researchers have been leading the charge for NASA to alter the name of the $10-billion flagship mission, launched in December 2021, which will provide unparalleled views of the universe. The e-mails make clear that, behind the scenes, NASA was well aware of Webb’s problematic legacy even as the agency’s leadership declined to take his name off the project.

“Reading through the exchanges, it seems that LGBTQ+ scientists and the concern we raised are not really what they care about,” says Yao-Yuan Mao of Rutgers University, who maintains the online Astronomy and Astrophysics Outlist of openly LGBTQ+ researchers.

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New Revelations Raise Pressure on NASA to Rename the James Webb Space TelescopeArtist’s conception of the James Webb Space Telescope. Credit: NASA GSFC/CIL/Adriana Manrique Gutierrez (CC BY 2.0)

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Click the link below for the article:

https://www.scientificamerican.com/article/new-revelations-raise-pressure-on-nasa-to-rename-the-james-webb-space-telescope/

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