...the who's who,
and the what's what 
of the space industry

Space Careers

news Space News

Search News Archive

Title

Article text

Keyword

Copernical Team

Copernical Team

Wednesday, 13 July 2022 06:49

Webb Telescope: What will scientists learn?

Write a comment
Webb's first image delivered the deepest and sharpest infrared image of the distant universe so far, "Webb's First Deep Fie
Webb's first image delivered the deepest and sharpest infrared image of the distant universe so far, "Webb's First Deep Field"

The James Webb Space Telescope's first images aren't just breathtaking—they contain a wealth of scientific insights and clues that researchers are eager to pursue.

Here are some of the things scientists now hope to learn.

Into the deep

Webb's first image, released Monday, delivered the deepest and sharpest infrared image of the distant universe so far, "Webb's First Deep Field."

The white circles and ellipses are from the galaxy cluster in the foreground called SMACS 0723, as it appeared more than 4.6 billion years ago—roughly when our Sun formed too.

The reddish arcs are from light from ancient galaxies that has traveled more than 13 billion years, bending around the foreground cluster, which acts as a gravitational lens.

Write a comment
Baby stars, dancing galaxies: NASA shows new cosmic views
This image released by NASA on Tuesday, July 12, 2022, shows the Southern Ring Nebula for the first time in mid-infrared light. It is a hot, dense white dwarf star, according to NASA. Credit: NASA, ESA, CSA, STScI via AP

A sparkling landscape of baby stars. A foamy blue and orange view of a dying star. Five galaxies in a cosmic dance. The splendors of the universe glowed in a new batch of images released Tuesday from NASA's powerful new telescope.

The unveiling from the $10 billion James Webb Space Telescope began Monday at the White House with a sneak peek of the first shot—a jumble of distant galaxies that went deeper into the cosmos than humanity has ever seen.

Write a comment
A swarm of swimming robots to search for life under the ice on Europa
This illustration explains how the SWIM concept works. A lander sits on Europa’s surface, and a cryobot tunnels its way through the ice while remaining data-tethered to the lander. The cryobot gathers data as it tunnels its way through the ice. Once into the ocean, the cryobot releases about four dozen small SWIM-bots to gather data. Credit: NASA/JPL-Caltech

When Galileo pointed his telescope at Jupiter 400 years ago, he saw three blobs of light around the giant planet, which he at first thought were fixed stars.

Write a comment
China's Tianwen-1 has imaged the entire surface of Mars, completing its primary mission
An image of dunes on Mars, taken by the Zhurong rover of the Tianwen-1 probe shortly before it entered dormancy in May 2022. Credit: CNSA

After exploring Mars for more than a year, China's Tianwen-1 space probe has successfully taken images covering the entire Red Planet, China's National Space Administration (CNSA) announced on June 29. Tianwen-1, which translates to "quest for heavenly truth," consists of six separate spacecraft: an orbiter, two deployable cameras, lander, remote camera, and Zhurong rover. The images in question were taken by the orbiter while circling Mars 1,344 times, capturing images of the Red Planet from every angle while Zhurong explored the surface. in the statement, CNSA said the probe has now completed all of its tasks, which included taking medium-resolution images covering the entire planet.

Tianwen-1 was launched on July 23, 2020, amidst the turmoil of the COVID-19 global pandemic.

Write a comment
China is considering a nuclear-powered mission to Neptune
Schematic diagram of 10 kW heat pipe fast reactor and power supply of thermoelectric generation space reactor. Credit: SciEngine/Yu, Goubin et al. (2022)

One look at the Planetary Decadal Survey for 2023–2032, and you will see some bold and cutting-edge mission proposals for the coming decade. Examples include a Uranus orbiter and probe (UOP) that would study Uranus' interior, atmosphere, magnetosphere, satellites, and rings; and an Enceladus orbiter and surface lander to study the active plumes emanating from Enceladus' southern polar region. Not to be outdone, China is also considering a nuclear-powered Neptune Explorer to explore the ice giant, its largest moon (Triton), and its other satellites and rings.

The mission was the subject of a study conducted by researchers from the China National Space Agency (CNSA), the Chinese Academy of Sciences (CAS), the China Atomic Energy Authority, the China Academy of Space Technology, and multiple universities and institutes.

Write a comment
Space agriculture boldly grows food where no one has grown before
Satellite imagery monitors environmental changes to inform agricultural decisions. Agricultural patterns are distinctly visible in this near-vertical false colour infrared photography of farmland south of Khartoum, Sudan. Credit: JSC/NASA

Whether to spend money on outer space exploration or to apply it to solve serious problems on Earth, like climate change and food shortages, is a contentious debate. But one argument in favor of space exploration highlights benefits that do, in fact, help study, monitor and address serious concerns like climate change and food production.

As access to space increases, the potential for terrestrial benefits directly tied to grow exponentially.

For example, agriculture has been improved significantly through the application of space-based advances to terrestrial challenges. It is now increasingly likely that have been produced with the assistance of space-based technologies, like freeze-dried foods, or through the use of crop monitoring from space-based observatories.

Write a comment
James Webb Space Telescope
Credit: Pixabay/CC0 Public Domain

Think only professional astronomers will have access to the James Webb Space Telescope? Think again!

Three citizen scientists—members of the public—have discovered new astronomical objects that Webb will soon view. One of these volunteers is a co-investigator on a winning Webb proposal.

Later today, NASA, in partnership with the European Space Agency and the Canadian Space Agency, will release the first full-color images and spectroscopic data from the James Webb Space Telescope. But long before then, citizen scientists at Backyard Worlds: Planet 9 were working hard to find new nearby objects that Webb could follow-up. The who discovered Webb targets all work on this .

"Even though the process was occasionally painstaking, it was worth it," said Arttu Sainio, who discovered a new object that Webb will examine. Sainio's discovery is a "brown dwarf," a ball of gas too cool to be considered a star, a key to understanding exoplanets. "I end up discovering hundreds of brown dwarf candidates and many of them have been followed up and researched." Citizen scientists Melina Thevenot and Dan Caselden also discovered brown dwarfs Webb will study.

Write a comment
Webb captures dying star's final 'performance' in fine detail
Credit: NASA, ESA, CSA, and STScI

Some stars save the best for last.

The dimmer star at the center of this scene has been sending out rings of gas and for thousands of years in all directions, and NASA's James Webb Space Telescope has revealed for the first time that this star is cloaked in dust.

Two cameras aboard Webb captured the latest image of this planetary , cataloged as NGC 3132, and known informally as the Southern Ring Nebula. It is approximately 2,500 light-years away.

Webb will allow astronomers to dig into many more specifics about planetary nebulae like this one—clouds of gas and dust expelled by dying stars. Understanding which molecules are present, and where they lie throughout the shells of gas and dust will help researchers refine their knowledge of these objects.

This observation shows the Southern Ring Nebula almost face-on, but if we could rotate it to view it edge-on, its three-dimensional shape would more clearly look like two bowls placed together at the bottom, opening away from one another with a large hole at the center.

Write a comment
Webb Reveals Cosmic Cliffs, Glittering Landscape of Star Birth
Credit: NASA, ESA, CSA, and STScI

This landscape of "mountains" and "valleys" speckled with glittering stars is actually the edge of a nearby, young, star-forming region called NGC 3324 in the Carina Nebula. Captured in infrared light by NASA's new James Webb Space Telescope, this image reveals for the first time previously invisible areas of star birth.

Called the Cosmic Cliffs, Webb's seemingly three-dimensional picture looks like craggy mountains on a moonlit evening. In reality, it is the edge of the giant, gaseous cavity within NGC 3324, and the tallest "peaks" in this image are about 7 light-years high. The cavernous area has been carved from the nebula by the and from extremely massive, hot, located in the center of the bubble, above the area shown in this image.

The blistering, from the young stars is sculpting the nebula's wall by slowly eroding it away. Dramatic pillars tower above the glowing wall of gas, resisting this radiation. The "steam" that appears to rise from the celestial "mountains" is actually hot, ionized gas and hot dust streaming away from the nebula due to the relentless radiation.

Page 1219 of 2137