Modelling extreme magnetic fields and temperature variation on distant stars

IMAGE

IMAGE: The maps show the heat distribution. The bue regions are cooler – and the yellow regions are hotter.

It describes data taken from the following magentars: 4U 0142+61, 1E 1547.0-5408, XTE…
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Credit: University of Leeds

New research is helping to explain one of the big questions that has perplexed astrophysicists for the past 30 years – what causes the changing brightness of distant stars called magnetars.

Magnetars were formed from stellar explosions or supernovae and they have extremely strong magnetic fields, estimated to be around 100 million, million times greater than the magnetic field found on earth.

The magnetic field generates intense heat and x-rays. It is so strong it also affects the physical properties of matter, most notably the way that heat is conducted through the crust of the star and across its surface, creating the variations in brightness across the star which has puzzled

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Most of Mass. under severe or extreme drought conditions, National Drought Monitor says

Most of Massachusetts is currently under “severe” or “extreme” drought conditions, the National Drought Monitor said Thursday.

An updated map released by the monitor Thursday said southeastern Massachusetts and the Cape and Islands were in the extreme drought category, as was a stretch of the northern part of Middlesex County.

The monitor describes extreme drought as a level that can bring significant crop and pasture losses, as well as “water shortages or restrictions,” according to its website.

Among the Massachusetts communities enacting restrictions Thursday was Cohasset.

Town officials said Thursday in a statement that a drought warning was “currently in effect for all residents,” and that the warning carries “stricter mandatory outdoor water restrictions” than those previously imposed on Sept. 1 due to “abnormally dry conditions.”

The stricter measures that took effect Thursday, the statement said, include a prohibition on using irrigation systems. In addition, officials said, a “handheld hose

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Newly Discovered ‘Extreme’ Alien Planet Is Super Hot At 5,800 Fahrenheit, Researchers Reveal

KEY POINTS

  • CHEOPS has released the results of its observation on alien planet WASP-189b
  • WASP-189b’s orbit is tilted dramatically and orbits its star every 2.7 Earth days
  • WASP-189b has temperatures reaching 5,800 Fahrenheit

The European Space Agency’s Characterizing Exoplanet Satellite (CHEOPS) has recently discovered an alien planet about 1.6 times the size of Jupiter. Aside from having a strange orbit, it is also scorching hot.

WASP-189b, the newly discovered alien planet, was first detected in 2018 and has been recorded to have temperatures reaching 5,800 Fahrenheit — almost as hot as Earth’s outer core and is even hot enough to turn iron into gas, ESA’s study revealed.

Aside from having a size comparable to Jupiter, the exoplanet is also considered a “Hot Jupiter” due to its extremely short orbital period (2.7 Earth days). A Hot Jupiter is a gas planet with a “Jupiter-like” size that orbits very close to its

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New Drought Monitor map shows extreme dry conditions growing in Calif.

The new federal Drought Monitor map shows that localized drought conditions are increasing in Northern California.

The Sept. 22 map had 3% of the state in extreme drought while the Sept. 29 map released Thursday shows 13%.

In the Bay Area, the map reveals that drought conditions range from moderate to severe.

The Drought Monitor, a mechanism to measure drought that’s mainly used in agriculture, is a joint effort of the National Oceanic and Atmospheric Administration, the U.S. Department of Agriculture and the National Drought Mitigation Center at the University of Nebraska-Lincoln. A map is released each week with drought conditions across the country, indexing everything from groundwater storage to river levels. The factors California state water managers watch most closely are precipitation totals and reservoir and snowpack levels.

The presence of drought on the map is no surprise — especially in Northern California. While Southern California saw above-average rainfall

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Conservative unease with science is global, but extreme in the US

Stock photo of an array of test tubes.

Nothing says “scientist” like test tubes.

On Tuesday, the Pew Research Center released survey results that represent a picture of how the publics of 20 different countries view science and the technologies it enables—or at least how those countries viewed science and tech immediately before the pandemic struck. The good news is that there’s widespread trust in scientists and a strong desire to act on their findings on issues like climate change.

But the results also contain plenty of reasons for concern. Some of the outcomes of scientific development, such as genetically modified foods, are widely mistrusted by the public in most countries. And, in many countries, there’s a large partisan divide in views of scientists—and the divide is the most extreme in the United States.

Respect

Normally, we’d spend some time discussing the details of how survey data was gathered. But with 20 countries, each with its own independent

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2012 Solar Storm Could Have Been More Extreme: Here’s How

KEY POINTS

  • In 2012, an extreme solar storm nearly hit the Earth
  • Researchers studying the event said it could have been more extreme if paired with another event
  • Researchers demonstrated how two solar storms could interact with each other

Solar storms could become more powerful if they happen quite close to each other, researchers studying the 2012 solar storm have found. 

On July 23, 2012, a solar storm, which NASA describes as the most powerful one in about 150 years, nearly hit the Earth. Had it hit the Earth, it would have caused an economic impact of over $2 trillion and the damages could take years to repair.

The 2012 near-miss has been likened to the 1859 Carrington Event, one of the biggest solar storms on record, that caused auroras as far south as Cuba and Honolulu.

Coronal Mass Ejections (CME) are outbursts of plasma from the sun that

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A Distant Blue Star Hosts One of the Most Extreme Exoplanets Known to Science

The newly deployed CHEOPS space telescope has completed its first observations of an exoplanet, uncovering some fascinating new details about an ultra-hot Jupiter known as WASP-189b.



Artistic impression of exoplanet WASP-189b orbiting its host star, which glows in blue.


© Image: ESA
Artistic impression of exoplanet WASP-189b orbiting its host star, which glows in blue.

Hot Jupiters are Jupiter-like exoplanets located in close proximity to their host stars, hence their name. Ultra-hot Jupiters are basically the same thing, but, as you’ve probably guessed, they’re even hotter. Back in 2018, astronomers using the ground-based WASP-South telescope in South Africa detected an ultra-hot Jupiter dubbed WASP-189b, unlike anything seen before.

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Two years later, using the brand-spanking-new Characterising Exoplanet Satellite (CHEOPS) space telescope, astronomers have gazed upon this celestial wonder with new eyes, refining what we know of this unusual exoplanet, while at the same time affirming the tremendous potential of this European space telescope, which only began making scientific observations this past April.

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First study with CHEOPS data describes one of the most extreme planets in the universe — ScienceDaily

Eight months after the space telescope CHEOPS started its journey into space, the first scientific publication using data from CHEOPS has been issued. CHEOPS is the first ESA mission dedicated to characterising known exoplanets. Exoplanets, i.e. planets outside the Solar system, were first found in 1995 by two Swiss astronomers, Michel Mayor and Didier Queloz, who were last year awarded the Nobel Prize for this discovery. CHEOPS was developed as part of a partnership between ESA and Switzerland. Under the leadership of the University of Bern and ESA, a consortium of more than a hundred scientists and engineers from eleven European states was involved in constructing the satellite over five years. The Science Operations Center of CHEOPS is located at the observatory of the University of Geneva.

Using data from CHEOPS, scientists have recently carried out a detailed study of the exoplanet WASP-189b. The results have just been accepted for

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First study with exoplanet satellite data describes one of the most extreme planets in the universe

First study with CHEOPS data describes one of the most extreme planets in the universe
When a planet passes in front of its star as seen from Earth, the star seems fainter for a short time. This phenomenon is called a transit. When the planet passes behind the star, the light emitted and/or reflected by the planet is obscured by the star for a short time. This phenomenon is called occultation. Credit: © ESA

CHEOPS keeps its promise: Observations with the space telescope have revealed details of the exoplanet WASP-189b—one of the most extreme planets known. CHEOPS is a joint mission by the European Space Agency (ESA) and Switzerland, under the aegis of the University of Bern in collaboration with the University of Geneva.


Eight months after the space telescope CHEOPS started its mission, the first scientific publication using data from CHEOPS has been issued. CHEOPS is the first ESA mission dedicated to characterizing known exoplanets, those orbiting stars outside the solar system. Exoplanets were

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Google attacks extreme ways of ACCC news media bargaining code

Google has continued its fight against Australia’s news media bargaining code, this time attacking the final offer arbitration process, known as baseball arbitration, that will be used.

In such a process, rather than parties agreeing to a deal, an arbitrator is presented with a final offer from each side and must select one of the offers presented. Google is arguing that Australia’s old media are asking for sums far in excess of what Google generates from searches related to news, which it says is around AU$10 million in revenue.

“Clearly, both sides have very different ideas of what the prices should be — and asking the arbitrator to pick a ‘final offer’ is an extreme way of resolving that,” Google ANZ chief Mel Silva said in a blog post.

“The reality is that baseball arbitration often fails and doesn’t produce quick outcomes. Independent economists have raised questions about its effectiveness.”

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