Every week, TecMundo and #AstroMiniBR bring together five interesting and entertaining astronomical curiosities produced by the world’s collaborators. twitter profileSpread the knowledge of astronomy. See below!
#1: A pulsar out of control!
In 2019, an international team of astronomers using the Karl G. Jansky Very Large Array (VLA) in the United States discovered a pulsar with a track pointing straight ahead, rapidly receding from its supposed birthplace at a staggering speed of about 1,000 kilometers per second. . into a shell of debris from the supernova explosion that created it!
Since that time, The discovery provided important information about how pulsars work. (extremely dense neutron stars left after a supernova) can gain momentum from an explosion. Pulsar PSR J0002+6216 is about 6,500 light-years from Earth and has a trail of high-energy particles stretching about 13 light-years behind it.
Because it points to the center of the supernova remnant, measurement of the pulsar’s motion allows to trace its birth precisely at the center of the structure where the supernova explosion occurred, and is now 53 light-years from the center. remaining supernova.
#2: Hubble Ultra Deep Field
See the picture above. This image is a view of about 10,000 galaxies, called the Hubble Ultra Deep Field view. To achieve this, the Hubble Space Telescope took 800 exposures taken in more than 400 Hubble orbits around Earth, over a total imaging period of 11.3 days, from September 24, 2003 to January 16, 2004.
this record Contains galaxies of various ages, sizes, shapes and colors. The smaller, redder galaxies, about 100, are among the most distant galaxies known, having existed since the universe was only 800 million years old. nearest galaxies, The larger spirals and ellipticals, which are brighter and sharper, took this final form about 1 billion years ago, when the cosmos was 13 billion years old.
The region of the sky where the image was taken corresponds to an area in the constellation of January and is so small that it is about one-tenth the diameter of the full moon when viewed from Earth. This region was chosen because it is apparently “empty”, a place where the density of surrounding bright stars is low.
#3: James Webb and the Pillars of Creation!
Last year, NASA’s James Webb Space Telescope recorded one of the most lush and iconic sights in the Universe during its first few months of operation: the famous Pillars of Creation.
Three-dimensional pillars look like rock formations from an exotic and beautiful place, but they are much more permeable and rich than that. These pillars are where new stars are constantly forming, consisting of cold interstellar gas and dust that appears translucent in near-infrared light. This new vision of James Webb It brings a new perspective to the image that became famous when it was first photographed by NASA’s Hubble Space Telescope in 1995..
This image helped the researchers overhaul their star formation models, determining the amount of gas and dust in the region, as well as much more accurate counts of newly formed stars. Over time, they will begin to understand more clearly how stars formed over millions of years and emerged from these dust clouds.
#4: Chemistry of Light!
How is it possible to know the chemical composition of a celestial body if we have never been there? The scientific development that led humanity to understand the answer to this question is one of the most magnificent chapters in the history of modern science. The most common method astronomers use to determine the composition of stars, planets, and other objects is spectroscopy, the study of the interaction between electromagnetic radiation and matter.
Currently, modern techniques use filtered instruments that scatter an object’s light according to its wavelength, producing what is called a spectrum as a result. Each element and chemical element combination has a unique fingerprint that astronomers can look for in the spectrum of a particular object. Thus, identifying these fingerprints allows researchers to identify what constitutes each object.
#5: Neptune Infrared!
Located 30 times further from the Sun than Earth, Neptune is a gaseous planet orbiting in the dark, distant region of the outer Solar System. At this extreme distance The sun is so small and dim that noon on Neptune looks like a dim twilight on Earth.
In this new image taken by James Webb, Neptune’s familiar blue hue gives way to a bright, clear light. This is because emission of small amounts of gaseous methane occurs precisely at blue wavelengths when observed in the visible light range. However, since James Webb observed the Universe via infrared, methane clouds in the universe appear as bright, luminous regions.
Source: Tec Mundo
I’m Blaine Morgan, an experienced journalist and writer with over 8 years of experience in the tech industry. My expertise lies in writing about technology news and trends, covering everything from cutting-edge gadgets to emerging software developments. I’ve written for several leading publications including Gadget Onus where I am an author.
