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Telescope

James Webb Space Telescope Launches on Christmas Day: A Historic Milestone in Space Exploration

by Chief editor of world-today-news.com December 23, 2023

written by Chief editor of world-today-news.com

It was 20 minutes after noon in Portugal when, on Christmas Day, December 25, 2021, a French-made Ariane 5 rocket took off from the Kourou Space Center, in French Guiana. Breaking through the clouds in the north of the South American continent, Ariane carried at its tip one of the most anticipated and ambitious space exploration projects of the last three decades: the James Webb space telescope, the largest and most advanced telescope ever built by the space agency. North American NASA, the European Space Agency (ESA) and the Canadian Space Agency. Your destination: the second Lagrange Point, a point of gravitational balance between the Earth and the Sun, 1500 million kilometers from our planet, on a mission to discover the origins of the Universe.

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2023-12-23 15:54:00
#years #James #Webb #Telescope

December 23, 2023 0 comments

Technology

The telescope caught a “real monster”. It is hidden deep in space | TN.cz

by Chief editor of world-today-news.com December 7, 2023

written by Chief editor of world-today-news.com

James Webb’s telescope recorded a wondrous phenomenon in deep space. Astronomers have rediscovered the galaxy AzTECC71, which reminds them of a terrifying creature. They even managed to take a picture of her. Although it is monstrously large, due to the great distance it is extremely difficult to record.

Astronomers first discovered the galaxy ten years ago using the Hubble telescope. But then she was lost to them. Now, a team from the University of Texas at Austin has recorded it again using the James Webb Telescope. They subsequently published the results of their investigation in a journal The Astrophysical Journal.

Image of the galaxy from the James Webb telescope:

Galaxy AzTECC71 | Source: Provided by J. McKinney/M. Franco/C. Casey/The University of Texas at Austin

On the artistic representation of the site SciTechDaily you can see what the galaxy might look like. It resembles a monster with large eyes and an open mouth that screams into the void. Its terrifying appearance is enhanced by the fact that it is a real giant.

NASA’s James Webb Space Telescope (JWST) has captured ‘a real monster’ in deep space – a dusty galaxy birthing hundreds of stars yearly. An artist’s impression of AzTECC71 shows the object with two eyes and a large open mouth. pic.twitter.com/t53FQ3zBjL

— ? ???ℍ ? (@TeahCartel) December 4, 2023

“It’s a real monster. Although it looks like a tiny blob, it actually produces hundreds of new stars every year. And the fact that even something so extreme is barely visible in the most sensitive images from our latest telescope is exciting to me. Potentially it tells us that there is a whole population of galaxies that has been hidden from us until now,” noted researcher Jed McKinney in press release University of Texas.

The team sees the galaxy as it was about 900 million years after the big bang, around 13 billion years ago. “We can study the optical and infrared properties of this heavily dust-obscured hidden population of galaxies for the first time,” boasts McKinney.

The earth was hit by very strong radiation. Scientists Can’t Believe Where It Came From From Space (11/2023):

TN.cz

2023-12-07 04:45:00
#telescope #caught #real #monster #hidden #deep #space #TN.cz

December 7, 2023 0 comments

Technology

NASA Discovers 2 Farthest Galaxies from Earth

by Chief editor of world-today-news.com November 17, 2023

written by Chief editor of world-today-news.com

KOMPAS.com – Galaxies are part of the universe consisting of hundreds of trillions of stars and space fog.

There are many galaxies in the universe. The distance between galaxies is very far and is usually calculated in units of billions or millions of light.

Also read: What does the new galaxy JWST-ER1 discovered by the James Webb Telescope look like?

Not long ago, two new galaxies were discovered through NASA’s James Webb telescope. These two galaxies are listed as the most distant galaxies.

It’s a long distance

Quoted from Space.com, Tuesday (14/11/2023), these two galaxies are referred to as UNCOVER-z13 and UNCOVER-z12. “z” is the symbol for the red shift that occurs in the galaxy.

Redshift is the effect of the light of a distant galaxy so that the light appears to shift towards a larger spectrum or becomes red when viewed from Earth.

The red shift that occurred on UNCOVER-z12 was 12.393. Meanwhile, UNCOVER-z13 has a redshift of 13,079. This value makes the UNCOVER-z13 galaxy the second most distant galaxy ever discovered.

Store past universe information

Reporting from ScienceDailyMonday (13/11/2023), the appearance of these two galaxies is quite unique because they look like a bean and a hairy ball.

The light from this galaxy takes a very long time to reach Earth, so these two galaxies are said to be able to store information about the universe in the past.

“Little is known about the early universe, and the only way to study that time is to test existing theories about early galaxy formation and growth is through (observations of) these very distant galaxies,” said Bingjie Wang, a researcher in this research.

Also read: What does the new galaxy discovered by Spanish astronomers look like?

Wang himself is a member of the JWST UNCOVER (James Webb Space Telescope, Ultradeep NIRSpec and NIRCam Observations before the Epoch of Reionization) team.

Meanwhile, another member of JWST UNCOVER, Joel Leja, also explained how this galaxy stores information from the past.

“The light from these galaxies is ancient, about 3 times older than Earth,” said Leja, who is also an assistant professor of astronomy and astrophysics at Penn State University, United States.

“Like a lighthouse, its light penetrates the very thin hydrogen gas when the early universe was formed. Through its light, we can begin to understand the exotic physics that governed galaxies when the universe was formed,” he continued.

The process of discovering UNCOVER-z13 and UNCOVER-z12

These two galaxies were among approximately 60,000 light sources in the Pandora Cluster in one of JWST’s images captured in 2022 during JWST’s first year of operation.

In the following months, the UNCOVER team selected 700 candidates from 60,000 light sources for in-depth observation. 8 of these light sources were said to have the potential to become galaxies which were later discovered.

Then, JWST records the spectra of 8 candidate light sources as a typical fingerprint which represents the detailed number of sources at each wavelength for each source.

Then, a giant magnifying lens was used to look at these 8 candidates in depth. As a result, these 2 ancient galaxies were discovered.

Also read: How Long Does It Take to Travel from Earth to the Nearest Galaxy?

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2023-11-17 02:35:00
#NASA #Discovers #Farthest #Galaxies #Earth

November 17, 2023 0 comments

Health

NASA’s James Webb Space Telescope Captures Stunning Color Images of Star Birth

by Chief editor of world-today-news.com November 10, 2023

written by Chief editor of world-today-news.com

Friday, 10 November 2023 – 16:10 WIB

LIVE Techno – Stars are astronomical objects that have light, this is because of the nuclear reactions that occur in their core. Stars are one of the basic components of the universe which are sources of light, heat and energy in the cosmos.

Reporting from BBC, Friday, November 10 2023, recently made observations show how stars are born and the process of their formation. All of this cannot be separated from the role of the James Webb space telescope, which was just launched by NASA and the European Space Agency.

NASA is excited to reveal the secret of star birth

Through his telescope, he showed the protostar HH 212 which is about 1,300 light years from Earth.

HH 212 was first discovered in 1993, located near Orion’s Belt and astronomers have spent the last three decades taking images to reveal how this budding star slowly formed.

However, according to Mark McCaughrean, a senior advisor at the European Space Agency, this is the first time scientists have seen “stunning color images” of protostars, which was previously impossible with telescopes on Earth.

The new image reveals intricate details of star formation, with symmetrical plumes of pink emission gas originating from both poles of the protostar.

McCaughrean explains that these neon bursts, known as jets or outflows, are a byproduct of star birth, and their bright colors indicate the presence of hydrogen molecules.

“When the lump of gas in the center solidifies, it starts to spin,” he explained in an interview with the BBC.

“But if it spins too fast, it gets thrown out, so something has to take away its angular momentum… We believe it’s the jet and the outflow.” he continued.

According to the BBC, the view captured by the telescope “will appear similar” to a past stage of our Sun’s development.

NASA is excited to reveal the secret of star birth

The James Webb Space Telescope, launched two years ago, is located more than a million miles away at a place called “Lagrange Point 2,” and has the ability to take images from space, providing clues about the formation of stars and planets.

“Webb has provided a more complex understanding of galaxies, stars and planetary atmospheres beyond our solar system than ever before, laying the foundation for NASA to lead the world in an era of scientific discovery and exploration of habitable planets,” said Nicola Fox, associate administrator of the Directorate NASA Science Mission.

He praised the telescope’s ability to revolutionize understanding of the cosmos by being able to see “light from distant corners of the universe for the first time.”

“Each new image is a new discovery, providing the impetus for scientists around the world to ask and answer questions that previously only existed in dreams,” he added.

2023-11-10 09:10:01
#NASA #excited #reveal #secret #star #birth

November 10, 2023 0 comments

Technology

Telescope James Webb Discovers Winds and Quartz Crystals on Distant Gas Giant WASP-17b

by Chief editor of world-today-news.com October 23, 2023

written by Chief editor of world-today-news.com

TEMPO.CO, Jakarta – Telescop James Webb discovered winds of thousands of miles per hour blowing showers of tiny quartz crystals through a torrid atmosphere containing silicate in planet a distant gas giant called WASP-17b.

“We know from observations [Teleskop Luar Angkasa] Hubble that there must be aerosols in the form of small particles that form clouds or fog, in the atmosphere of WASP-17b,” said Daniel Grant from the University of Bristol in England and leader of a new study regarding the discovery, as quoted by Space last week. However, the researchers did not think that the particles were made of quartz.

Quartz is a form of silicate, which is a mineral rich in silica and oxygen. Silicates are very common. All rocky bodies in the solar system are made of silicates, and silicates have previously been detected in the atmospheres of hot exoplanets Jupiter. However, in that case the olivine and pyroxene crystals are more complex and rich in magnesium.

“We fully expected to see magnesium silicate,” said Hannah Wakeford from Bristol. “But what we’re looking at is most likely the building blocks, namely the tiny seed particles needed to form the larger silicate grains we find on cooler exoplanets and brown dwarfs.”

Sekilas planet WASP-17b

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The planet orbits every 3.7 days at a distance of just 7.8 million kilometers from its star, which is 1,300 light years from Earth. WASP-17b is so close to its parent star that daytime temperatures reach 1,500 degrees Celsius.

Because the atmosphere on this exoplanet is so hot, the planet’s actual area has expanded to about 285,000 kilometers, which is twice the diameter of Jupiter. although WASP-17b only has about half the mass of Jupiter. WASP-17b is one of the “swolliest” planets ever known — and its swollen atmosphere makes it a good target for the James Webb Space Telescope.

In this research, Grant and fellow astronomers observed WASP-17b passing by its star using JWST’s Mid-Infrared Instrument (MIRI). As the exoplanet moves in front of its star from JWST’s perspective, MIRI detects starlight that is blocked by the swollen planet itself, but partially absorbed by the world’s atmosphere. The measurements produce what is called a transmission spectrum, in which certain wavelengths are blocked by certain atmospheric molecules.

Grant explains how silicate crystals first became embedded in planetary atmospheres. “WASP-17b is very hot and the pressure at which quartz crystals form in the high atmosphere is only about a thousandth of what we experience at the Earth’s surface,” he said. According to him, in conditions like this, solid crystals can form directly from gas, without going through the liquid phase first.

These findings were published in the Astrophysical Journal Letters. The 15-page journal was published on October 20, 2023.

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2023-10-23 09:42:20
#James #Webb #Telescope #Detects #CloudShaped #Quartz #Crystals #Planet #WASP17b

October 23, 2023 0 comments

Technology

Exploring the Dwingeloo Telescope: Unveiling the Wonders of the Night Sky

by Chief editor of world-today-news.com October 22, 2023

written by Chief editor of world-today-news.com

Yet the disruption is also noticeable here. To draw attention to this, the Dwingeloo Telescope opens its doors during the Night of the Night. Visitors are welcome to take a look, as long as the phone is turned off. Dijkema: “People can walk by here and look in one of these binoculars at our moon, the moons of Jupiter or the rings of Saturn. The radio telescope is also open, but you need to make a reservation because it is small.”

“This is the control room, here we have all kinds of devices to receive the signals and computers to look at the signals,” Dijkema points out. “Yes, I hear a beep, a tap. You can see those taps appearing here now, that’s what we do it all for. Look what a beautiful, regular signal that is. These are taps from the space of a star three thousand light years away They are very weak signals, but because this is a large dish we can still receive them.”

The telescope may be sensitive to space signals, but haste is still required for astronomical research. “The technology is getting better and better, we now measure signals that we could not measure fifty years ago,” says Dijkema. “But fifty years ago it was much quieter here because there were no mobile phones. If we could have measured fifty years ago with today’s technology, that would have been fantastic. Before the entire spectrum is polluted, we must do all astronomy have done.”

During the Night of the Night, attention is paid to the dark at various locations. On this website you can see what there is to do in Drenthe.
2023-10-21 14:01:21
#Hurry #required #searching #universe

October 22, 2023 0 comments

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