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JWST captures rare star right before it goes supernova
James Webb Space Telescope
James Webb Space Telescope
The James Webb Space Telescope (JWST) is a large, infrared-optimized space telescope set to be launched in 2021 by NASA, with contributions from the European Space Agency (ESA) and the Canadian Space Agency (CSA). It is named after James E. Webb, who served as the second administrator of NASA from 1961 to 1968.
The JWST is considered to be the successor to the Hubble Space Telescope and will have significantly greater capabilities in terms of observing the universe in the infrared spectrum. It will be positioned at the second Lagrange point (L2), which is located approximately 1.5 million kilometers from Earth in the opposite direction of the Sun.
Some of the key scientific goals of the JWST include studying the first galaxies and stars that formed after the Big Bang, exploring the properties of exoplanets and their atmospheres, and studying the formation and evolution of planetary systems. The JWST is equipped with a suite of scientific instruments, including a near-infrared camera, a near-infrared spectrograph, a mid-infrared instrument, and a fine guidance sensor/near-infrared imager and slitless spectrograph.
The development of the JWST has been a complex and challenging process, and it has faced several delays and cost overruns. However, it is now scheduled to be launched on December 22, 2021, and is expected to provide unprecedented insights into the universe for many years to come.
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Webb’s Jupiter Images Showcase Auroras
James Webb’s Jupiter Images Showcase Auroras, Hazes
With giant storms, effective winds, auroras, and intense temperature and pressure conditions, Jupiter has a lot going on. Now, NASA’s James Webb Space Telescope has captured new pictures of the planet. Webb’s Jupiter observations will provide scientists even more clues to Jupiter’s internal life.
“We hadn’t really expected it to be this good, to be honest,” stated planetary astronomer Imke de Pater, professor emerita of the University of California, Berkeley. De Pater led the observations of Jupiter with Thierry Fouchet, a professor at the Paris Observatory, as section of an worldwide collaboration for Webb’s Early Release Science program. Webb itself is an worldwide mission led via NASA with its companions ESA (European Space Agency) and CSA (Canadian Space Agency). “It’s actually remarkable that we can see details on Jupiter collectively with its rings, tiny satellites, and even galaxies in one image,” she said.
The two pictures come from the observatory’s Near-Infrared Camera (NIRCam), which has three specialised infrared filters that exhibit details of the planet. Since infrared light is invisible to the human eye, the light has been mapped onto the visible spectrum. Generally, the longest wavelengths appear redder and the shortest wavelengths are proven as extra blue. Scientists collaborated with citizen scientist Judy Schmidt to translate the Webb information into images.
In the standalone view of Jupiter, created from a composite of quite a few pics from Webb, auroras extend to excessive altitudes above each the northern and southern poles of Jupiter. The auroras shine in a filter that is mapped to redder colors, which additionally highlights light reflected from lower clouds and higher hazes. A extraordinary filter, mapped to yellows and greens, indicates hazes swirling around the northern and southern poles. A 1/3 filter, mapped to blues, showcases light that is mirrored from a deeper major cloud.
The Great Red Spot, a well-known storm so huge it ought to swallow Earth, seems white in these views, as do other clouds, due to the fact they are reflecting a lot of sunlight.
“The brightness here indicates excessive altitude – so the Great Red Spot has high-altitude hazes, as does the equatorial region,” stated Heidi Hammel, Webb interdisciplinary scientist for solar system observations and vice president for science at AURA. “The numerous bright white ‘spots’ and ‘streaks’ are probably very high-altitude cloud tops of condensed convective storms.” By contrast, dark ribbons north of the equatorial region have little cloud cover.
In a wide-field view, Webb sees Jupiter with its faint rings, which are a million instances fainter than the planet, and two tiny moons known as Amalthea and Adrastea. The fuzzy spots in the lower background are probably galaxies “photobombing” this Jovian view.
“This one picture sums up the science of our Jupiter device program, which research the dynamics and chemistry of Jupiter itself, its rings, and its satellite system,” Fouchet said. Researchers have already begun examining Webb statistics to get new science consequences about our solar system’s largest planet.
Data from telescopes like Webb doesn’t arrive on Earth neatly packaged. Instead, it consists of statistics about the brightness of the light on Webb’s detectors. This data arrives at the Space Telescope Science Institute (STScI), Webb’s mission and science operations center, as raw data. STScI procedures the information into calibrated documents for scientific analysis and gives you it to the Mikulski Archive for Space Telescopes for dissemination. Scientists then translate that statistics into pictures like these all through the course of their research (here’s a podcast about that). While a crew at STScI formally strategies Webb photos for respectable release, non-professional astronomers recognized as citizen scientists regularly dive into the public statistics archive to retrieve and method images, too.
Judy Schmidt of Modesto California, a longtime photograph processor in the citizen science community, processed these new views of Jupiter. For the photo that consists of the tiny satellites, she collaborated with Ricardo Hueso, a co-investigator on these observations, who research planetary atmospheres at the University of the Basque Country in Spain.
Schmidt has no formal instructional background in astronomy. But 10 years ago, an ESA contest sparked her insatiable ardour for picture processing. The “Hubble’s Hidden Treasures” competition invited the public to discover new gems in Hubble data. Out of almost 3,000 submissions, Schmidt took home third place for an photograph of a newborn star.
Since the ESA contest, she has been working on Hubble and different telescope statistics as a hobby. “Something about it simply caught with me, and I can’t stop,” she said. “I should spend hours and hours each day.”
Her love of astronomy photographs led her to process pictures of nebulae, globular clusters, stellar nurseries, and greater astounding cosmic objects. Her guiding philosophy is: “I strive to get it to seem natural, even if it’s now not something shut to what your eye can see.” These snap shots have caught the interest of expert scientists, together with Hammel, who before collaborated with Schmidt on refining Hubble photos of comet Shoemaker-Levy 9’s Jupiter impact.
Jupiter dominates the black background of space. The planet is striated with swirling horizontal stripes of neon turquoise, periwinkle, light pink, and cream. The stripes engage and combine at their edges like cream in coffee. Along each of the poles, the planet glows in turquoise. Bright orange auroras glow simply above the planet’s floor at each poles.
Webb NIRCam composite picture of Jupiter from three filters – F360M (red), F212N (yellow-green), and F150W2 (cyan) – and alignment due to the planet’s rotation. Credit: NASA, ESA, CSA, Jupiter ERS Team; photo processing with the aid of Judy Schmidt.
With giant storms, effective winds, auroras, and severe temperature and strain conditions, Jupiter has a lot going on. Now, NASA’s James Webb Space Telescope has captured new pics of the planet. Webb’s Jupiter observations will provide scientists even greater clues to Jupiter’s internal life.
“We hadn’t definitely anticipated it to be this good, to be honest,” stated planetary astronomer Imke de Pater, professor emerita of the University of California, Berkeley. De Pater led the observations of Jupiter with Thierry Fouchet, a professor at the Paris Observatory, as section of an global collaboration for Webb’s Early Release Science program. Webb itself is an global mission led by way of NASA with its companions ESA (European Space Agency) and CSA (Canadian Space Agency). “It’s really top notch that we can see details on Jupiter collectively with its rings, tiny satellites, and even galaxies in one image,” she said.
The two pictures come from the observatory’s Near-Infrared Camera (NIRCam), which has three specialised infrared filters that exhibit details of the planet. Since infrared light is invisible to the human eye, the light has been mapped onto the seen spectrum. Generally, the longest wavelengths show up redder and the shortest wavelengths are proven as greater blue. Scientists collaborated with citizen scientist Judy Schmidt to translate the Webb statistics into images.
In the standalone view of Jupiter, created from a composite of numerous photographs from Webb, auroras prolong to excessive altitudes above each the northern and southern poles of Jupiter. The auroras shine in a filter that is mapped to redder colors, which additionally highlights light reflected from decrease clouds and higher hazes. A distinct filter, mapped to yellows and greens, suggests hazes swirling round the northern and southern poles. A third filter, mapped to blues, showcases light that is reflected from a deeper major cloud.
The Great Red Spot, a well-known storm so large it ought to swallow Earth, seems white in these views, as do different clouds, because they are reflecting a lot of sunlight.
“The brightness right here shows excessive altitude – so the Great Red Spot has high-altitude hazes, as does the equatorial region,” stated Heidi Hammel, Webb interdisciplinary scientist for solar system observations and vice president for science at AURA. “The numerous brilliant white ‘spots’ and ‘streaks’ are probable very high-altitude cloud tops of condensed convective storms.” By contrast, darkish ribbons north of the equatorial location have little cloud cover.
A wide-field view showcases Jupiter in the higher proper quadrant. The planet’s swirling horizontal stripes are rendered in blues, browns, and cream. Electric blue auroras glow above Jupiter’s north and south poles. A white glow emanates out from the auroras. Along the planet’s equator, rings glow in a faint white. At the some distance left part of the rings, a moon seems as a tiny white dot. Slightly similarly to the left, every other moon glows with tiny white diffraction spikes. The relaxation of the photograph is the blackness of space, with faintly glowing white galaxies in the distance.
A wide-field view showcases Jupiter in the higher proper quadrant. The planet’s swirling horizontal stripes are rendered in blues, browns, and cream. Electric blue auroras glow above Jupiter’s north and south poles. A white glow emanates out from the auroras. Along the planet’s equator, rings glow in a faint white. At the a long way left area of the rings, a moon seems as a tiny white dot. Slightly similarly to the left, some other moon glows with tiny white diffraction spikes. The relaxation of the picture is the blackness of space, with faintly glowing white galaxies in the distance.
Webb NIRCam composite photograph from two filters – F212N (orange) and F335M (cyan) – of Jupiter system, unlabeled (top) and labeled (bottom). Credit: NASA, ESA, CSA, Jupiter ERS Team; picture processing by means of Ricardo Hueso (UPV/EHU) and Judy Schmidt.
In a wide-field view, Webb sees Jupiter with its faint rings, which are a million instances fainter than the planet, and two tiny moons known as Amalthea and Adrastea. The fuzzy spots in the lower background are probably galaxies “photobombing” this Jovian view.
“This one picture sums up the science of our Jupiter system program, which research the dynamics and chemistry of Jupiter itself, its rings, and its satellite system,” Fouchet said. Researchers have already begun inspecting Webb records to get new science consequences about our solar system’s biggest planet.
Data from telescopes like Webb doesn’t arrive on Earth neatly packaged. Instead, it consists of facts about the brightness of the mild on Webb’s detectors. This statistics arrives at the Space Telescope Science Institute (STScI), Webb’s mission and science operations center, as raw data. STScI techniques the statistics into calibrated archives for scientific evaluation and provides it to the Mikulski Archive for Space Telescopes for dissemination. Scientists then translate that statistics into pictures like these throughout the direction of their lookup (here’s a podcast about that). While a group at STScI formally strategies Webb pictures for respectable release, non-professional astronomers recognized as citizen scientists regularly dive into the public statistics archive to retrieve and process images, too.
Judy Schmidt of Modesto California, a longtime photograph processor in the citizen science community, processed these new views of Jupiter. For the picture that consists of the tiny satellites, she collaborated with Ricardo Hueso, a co-investigator on these observations, who research planetary atmospheres at the University of the Basque Country in Spain.
At the left, a seated photograph of Judy Schmidt on a bench in opposition to a backdrop of inexperienced leaves. On the right, an astronomical photo of a from NASA’s Hubble Space Telescope indicates the butterfly-like planetary nebula in green, yellow, and blue, in opposition to the black backdrop of space.
Citizen scientist Judy Schmidt of Modesto, California, procedures astronomical pics from NASA spacecraft, such as the Hubble Space Telescope. An instance of her work is Minkowski’s Butterfly, right, a planetary nebula in the course of the constellation Ophiuchus.
Schmidt has no formal educational history in astronomy. But 10 years ago, an ESA contest sparked her insatiable ardour for photograph processing. The “Hubble’s Hidden Treasures” opposition invited the public to locate new gemstones in Hubble data. Out of almost 3,000 submissions, Schmidt took home third place for an picture of a newborn star.
Since the ESA contest, she has been working on Hubble and different telescope information as a hobby. “Something about it simply caught with me, and I can’t stop,” she said. “I should spend hours and hours each and every day.”
Her love of astronomy photos led her to method photos of nebulae, globular clusters, stellar nurseries, and greater remarkable cosmic objects. Her guiding philosophy is: “I strive to get it to seem natural, even if it’s no longer something shut to what your eye can see.” These pics have caught the interest of expert scientists, which include Hammel, who in the past collaborated with Schmidt on refining Hubble pics of comet Shoemaker-Levy 9’s Jupiter impact.
Jupiter is clearly more difficult to work with than extra far-off cosmic wonders, Schmidt says, due to the fact of how speedy it rotates. Combining a stack of photos into one view can be difficult when Jupiter’s different elements have turned around in the course of the time that the pictures had been taken and are no longer aligned. Sometimes she has to digitally make changes to stack the photographs in a way that makes sense.
Webb will supply observations about each section of cosmic history, however if Schmidt had to pick out one element to be excited about, it would be extra Webb views of star-forming regions. In particular, she is interested by way of younger stars that produce effective jets in small nebula patches known as Herbig–Haro objects. “I’m certainly searching ahead to seeing these bizarre and exquisite baby stars blowing holes into nebula's,” she said.
– Elizabeth Landau, NASA Headquarters
Today in Technology (3 NOV-4 NOV )
TODAY IN TECHNOLOGY
WhatsApp now gives convenient clean-up guidelines via bucketing each large documents and media that has been forwarded a variety of times, sorting documents in accordance to dimension in descending order by providing a way to preview documents before deleting them.Recently, WhatsApp launched Disappearing Messages feature, which as soon as enabled, will make new messages disappear after seven days .
Google had first unveiled ‘Search Chips’ in February this year. As the identify suggests, it enhances the current search filters accessible on Gmail.
For instance, you can search a contact’s identify and similarly narrow down the search by the usage of search chips such as attachments (and its types like a text document, pdf, or spreadsheet) and a precise time frame. You can additionally use the chips to narrow down search effects to calendar invitations.
“For example, you can search a colleague’s identify and further narrow your consequences through selecting search chips like attachment type (Text Document, Spreadsheet, PDF) or a particular timeframe. You can additionally filter out certain results, like calendar invites,” stated Google in a blog post.Google’s Search Chips first rolled out for Gmail for G Suite users. Later, it was once made reachable for Gmail for end users. As of now, there is no word on the availability of Search Chips on the mobile version of the e-mail service.
Xiaomi has sold over 1 crore Mi Power Banks, the corporation tweeted on November three The Chinese smartphone maker started assembling energy banks in India in 2017. All units of power banks sold via Xiaomi in India since then have been produced regionally in the country. Three years later, the organization introduced that it has overcome the 1 crore-unit mark in terms of sales. The information comes a day after Xiaomi introduced the launch of its most compact Mi Power Bank in India.
Today in Technology (Latest News)
Today In Technology
There are any variety of VPN offerings you can use to assist guard your privateness and protection with an encrypted web connection, and now Google has its own. Well, technically, it already did, however only for Google Fi cellular subscribers on Android smartphones. Now, the company’s saying it’ll throw in an Android-based VPN free of cost to any 2TB Google One cloud storage subscriber in the US — and will make bigger to iOS, Windows and Mac and different international locations “in the coming months.”
Earth is part of a solar system the place quite a few planets revolve around a star. It is the pull of the Sun that is preserving the worlds in their set orbits in a uniform manner. While such solar systems are in abundance in the Milky Way galaxy, there exist millions of rogue planets in the galaxy who do no longer have a central star to revolve around and alternatively they simply go about their own way in deep space.Scientists have discovered about 4,000 exoplanets and a few rogue planets however a current discovering has left them surprised. Researchers have determined a world, which is comparable in size to Earth, travelling alone without any family. This should be the smallest rogue world ever detected.
SpaceX said the delay of launching NASA astronauts was once precipitated through a comfort valve blocked via a lacquer that prompted its engines to strive igniting a few seconds too soon.SpaceX first seen this problem in early October as it organized to launch a GPS satellite. The rocket auto aborted seconds before lift off because two engines (the rocket has nine) tried to begin early
The Universe is all there ever was, all there is, and all there will ever be. At least, that is what we're told, and that is what's implied by means of the word "Universe" itself. But whatever the real nature of the Universe really is, our capacity to accumulate facts about it is essentially limited.
It's only been 13.8 billion years due to the fact that the Big Bang, and the top speed at which any information can travel — the speed of light — is finite. Even although the whole Universe itself may actually be infinite, the observable Universe is limited. According to the main thoughts of theoretical physics, however, our Universe may be simply one minuscule region of a much larger multiverse, inside which many Universes, possibly even an limitless number, are contained. Some of this is real science, however some is nothing greater than speculative, wishful thinking. Here's how to inform which is which. But first, a little background.
The Universe nowadays has a few information about it that are particularly easy, at least with world-class scientific facilities, to observe. We understand the Universe is expanding: we can measure residences about galaxies that instruct us each their distance and how quickly they appear to move away from us. The farther away they are, the quicker they appear to recede. In the context of General Relativity, that means the Universe is expanding.
And if the Universe is expanding today, that potential it used to be smaller and denser in the past. Extrapolate again a long way enough, and you'll find that things are also more uniform (because gravity takes time to make things clump together) and hotter (because smaller wavelengths for light imply greater energies/temperatures). This leads us again to the Big Bang.
But the Big Bang wasn't the very starting of the Universe! We can only extrapolate returned to a certain epoch in time earlier than the Big Bang's predictions break down. There are a number of things we take a look at in the Universe that the Big Bang can not explain, however a new concept that sets up the Big Bang — cosmic inflation — can.
In the 1980s, a giant number of theoretical consequences of inflation have been worked out, including:
In the 1990s, 2000s and 2010s, these 4 predictions have been observationally verified to great precision. Cosmic inflation is a winner.
- what the seeds for large-scale structure should appear like,
- that temperature and density fluctuations ought to exist on scales larger than the cosmic horizon,
- that all areas of space, even with fluctuations, should have steady entropy,
- and that there ought to be a most temperature accomplished via the hot Big Bang.
Inflation tells us that, prior to the Big Bang, the Universe wasn't stuffed with particles, antiparticles and radiation. Instead, it was stuffed with energy inherent to space itself, and that power caused space to expand at a rapid, relentless, and exponential rate. At some point, inflation ends, and all (or almost all) of that power receives transformed into matter and energy, giving rise to the hot Big Bang. The cease of inflation, and what's regarded as the reheating of our Universe, marks the begin of the hot Big Bang. The Big Bang still happens, however it is not the very beginning.
If this had been the full story, all we would have used to be one extraordinarily giant Universe. It would have the same properties everywhere, the equal laws everywhere, and the components that had been beyond our visible horizon would be comparable to where we are, however it would not be justifiably known as the multiverse.
Until, that is, you remember that everything that physically exists need to be inherently quantum in nature. Even inflation, with all the unknowns surrounding it, should be a quantum field.
If you then require inflation to have the residences that all quantum fields have:
- that its properties have uncertainties inherent to them,
- that the field is described via a wave-function,
- and the values of that field can spread out over time,
- you attain a stunning conclusion.
Inflation does not end everywhere at once, however rather in select, disconnected locations at any given time, while the space between these areas continues to inflate. There need to be multiple, substantial regions of space where inflation ends and a hot Big Bang begins, however they can never come upon one another, as they're separated through regions of inflating space. Wherever inflation begins, it is all however assured to proceed for an eternity, at least in places.
Where inflation ends for us, we get a hot Big Bang. The phase of the Universe we observe is simply one phase of this region where inflation ended, with extra unobservable Universe past that. But there are countlessly many regions, all disconnected from one another, with the equal precise story.
That's the concept of the multiverse. As you can see, it is primarily based on two independent, well-established, and widely-accepted elements of theoretical physics: the quantum nature of the entirety and the properties of cosmic inflation. There's no known way to measure it, simply as there is no way to measure the unobservable section of our Universe. But the two theories that underlie it, inflation and quantum physics, have been established to be valid. If they're right, then the multiverse is an inescapable consequence of that, and we're dwelling in it.
So what? That's not a complete lot, is it? There are lots of theoretical penalties that are inevitable, however that we can't recognize about for sure due to the fact we can not check them. The multiverse is one in a long line of those. It's now not specifically a beneficial realization, simply an fascinating prediction that falls out of these theories.
So why do so many theoretical physicists write papers about the multiverse? About Parallel Universes and their connection to our personal via this multiverse? Why do they declare that the multiverse is related to the string landscape, the cosmological constant, and even to the reality that our Universe is finely-tuned for life?
Because even though it is obviously a bad idea, they do not have any better ones.
In the context of string theory, there are a big set of parameters that could, in principle, take on nearly any value. The concept makes no predictions for them, so we have to put them in via hand: the expectation values of the string vacua. If you have heard of rather giant numbers like the famed 10500 which seems in string theory, the feasible values of the string vacua are what they're referring to. We do not understand what they are, or why they have the values that they do. No one knows how to calculate them.
So, instead, some people say "it's the multiverse!" The line of wondering goes like this:
- We do not recognize why the necessary constants have the values they do.
- We do not comprehend why the laws of physics are what they are.
- String theory is a framework that may want to provide us our laws of physics with our integral constants, however it may want to provide us different laws and/or other constants.
- Therefore, if we have an extensive multiverse, where lots of different areas have distinctive laws and/or constants, one of them should be ours.
The huge trouble is that not only is this incredibly speculative, however there may be no reason, given the inflation and quantum physics we know, to presume that an inflating spacetime has specific laws or constants in distinct regions.
Not impressed with this line of reasoning? Neither is practically anyone else.
As I've defined before, the Multiverse is not a scientific concept on its own. Rather, it’s a theoretical consequence of the laws of physics as they’re great understood today. It’s possibly even an inevitable outcome of these laws: if you have an inflationary Universe ruled via quantum physics, this is some thing you’re fairly lots certain to wind up with. But — a lot like String Theory — it has some massive problems: it would not predict something we both have determined and cannot explain without it, and it would not predict some thing definitive we can go and seem to be for.
|Visualization of a quantum field concept calculation displaying virtual particles in the quantum vacuum. Even in empty space, this vacuum energy is non-zero. Whether it has the same, constant value in other regions of the multiverse is some thing we can't know, however there is no motivation for it to be that way|