Dreamer Science

Mysterious infra-frequency sounds are being detected in the Earth's upper atmosphere
It has been reported that there are mysterious sound waves in the stratosphere, which is the lowest layer of the earth's atmosphere.
These infrasounds (infrasound) with frequencies less than 20 Hertz that cannot be heard by the human ear have been detected by special equipment in solar powered balloons sent up to 70,000 feet above sea level.
This discovery was revealed at the 184th meeting of the American Acoustical Society held in Chicago, United States on May 11.
"The source of the mysterious infrasound that occurs several times an hour in the stratosphere is still unknown." Daniel Bowman, a senior scientist at Sandia National Laboratory in New Mexico, is the lead researcher of this study.
The stratosphere starts from 14.5 km above the sea level of the earth and spreads up to about 50 km.
Although this stratosphere is a calm zone with minimal disturbances, with ozone gas that blocks the sun's ultraviolet rays, these mysterious sounds are now a reality.

By EurekAlert.

Stephan's Quintet

— A galactic high five from James Webb!⁣
⁣• Here, we can see five galaxies, known as Stephan’s Quintet, and among them four of which interact. (The left galaxy is much closer to us than the rest of the group.) These colliding galaxies are pulling and stretching each other in a gravitational dance. Webb will revolutionize our knowledge of star formation and gas interactions within.⁣
• This mosaic is Webb’s largest image to date, covering an area of the sky 1/5 of the Moon’s diameter (as seen from Earth). It contains more than 150 million pixels and is constructed from about 1,000 image files. Webb is the most complex and powerful space telescope ever built.⁣
Additionally,
• ⁣A group of five galaxies that transpire close to each other in the sky: two in the middle, one toward the top, one to the upper left, and one toward the bottom. Four of the five appear to be touching. One is somewhat separated. In the image, the galaxies are large relative to the hundreds of much smaller (more distant) galaxies in the background. All five galaxies have bright white cores. Each has a slightly different size, shape, structure, and colouring. Scattered across the image, in front of the galaxies are several foreground stars with diffraction spikes: bright white points, each with eight bright lines radiating out from the centre.

Image credit: NASA, ESA, CSA, and STScI⁣⁣