MIRI

An asteroid on its way to collide with Earth. Illustration: depositphotos.com

Webb Telescope measurements dispel fears about asteroid 2024 YR4

  • No comments
While in the past, percentages of risk for a dangerous encounter with Earth were measured, the new data from advanced discoveries with NIRCam and MIRI indicate absolute confidence – with unique discoveries in the thermal and structural properties of the asteroid.
The JWST space telescope after completing functional tests, from [17]

It's not just engineering, it's art - the James Webb Space Telescope's infrared detector cooling system

  • 6 תגובות
This "penguin party" is loud. The twisted spiral galaxy in the center, known as the Penguin, and the compact elliptical galaxy to the left, known as the Egg, are in an active embrace. A new near- and mid-infrared image from the James Webb Space Telescope, taken to mark two years of scientific activity, shows that their interaction is marked by a subtle, inverted U-shaped blue glow. Credit: NASA, ESA, CSA, STScI

The Penguin and the Egg: A Living Portrait of Interacting Galaxies to Mark the Second Anniversary of the Webb Space Telescope

  • No comments
Researchers speculate that the penguin had the shape of a spiral. Today, its galactic center shines like an eye, its disordered arms now shaping as a beak, head, spine, and spread tail. The elliptical galaxy that looks like
This image from Webb's MIRI (mid-infrared) camera shows the star system Beta Pictoris. A flat disk of dust fragments, formed by collisions between planetesimals (orange), dominates the landscape and is called the "main disk plane". In the lower left corner, Webb showed the true extent of the secondary disk (cyan (turquoise), which is inclined 5 degrees relative to the primary disk. Webb also discovered a previously unseen feature called the "cat's tail." A coronagraph (a black circle and two small disks) was used to block The light of the central star. Scale bar shows that the disks of Beta Peak (pictoris) span hundreds of astronomical units (AU), where one AU is the average distance from Earth to the Sun. (In our solar system, Neptune orbits the Sun at a distance of 30 AU) in this image , light at a wavelength of 15.5 microns is shown in cyan (turquoise) and 23 microns in orange (F1550C and F2300C filters, respectively). Credit: NASA, ESA, CSA, STSCI, C. STARK and K. LAWSON (NASA GSFC), J. KAMMERER (ESO), and M. PERRIN (STSCI).

The Webb Space Telescope discovered a 'cat's tail' made of dust in the Beta Pictoris system

  • No comments
Beta Pictoris is a solar system in the making and relatively close so that the gas disks can be seen. It turns out that Webb was able to discover a structure that was not noticed in photographs with less sensitive instruments, thus he discovered a gas disk