On December 25th, 2021, after many years of anticipation, the James Webb Space Telescope (JWST) finally launched to space. In the sixth-month period that followed, this premier next-generation observatory unfurled its Sunshield, deployed its primary and secondary mirrors, aligned its mirror segments
This is because the light from these ancient galaxies experiences significantby the time it reaches us. This means that as the light travels through spacetime, its wavelength grows longer due to the expansion of the cosmos, effectively shifting it towards the red end of the spectrum. For galaxies whose redshift value is seven or higher – at a distance of 13.46 light-years or more – much of the light will be shifted to the point where it is only visible in the infrared part of the spectrum.
A spectral diagram comparing emitted light from an object to the observed redshifted light. As the Universe expands, it stretches light into lower frequencies or towards the red portion of the spectrum. Credit: NASA/ESA/C. Christian/Z. Levay For their study, Santini and her international team of researchers relied on images acquired by NIRCam on June 28th-29th, 2022, as part of its first set of observations. They then measured the stellar mass of 21 distant galaxies by probing their UV emission and redshifted-optical light.
South Africa Latest News, South Africa Headlines
Similar News:You can also read news stories similar to this one that we have collected from other news sources.
Two galaxies collide in image from Gemini North telescope | Digital TrendsHard as it is to imagine, out in the depths of space entire galaxies can collide. One such merger has been captured by NOIRLab's GeminiNorth telescope.
Read more »
Saturn is at opposition. See it shine at its best for 2022 in a free webcast tonight.Weather permitting, the Saturn webcast will begin at 7:30 p.m. EDT (2330 GMT) via the Virtual Telescope Project.
Read more »
Astronomy 101 for Coloradans: Clubs, apps and telescope stores helping earthlings reach for the skiesPredictable celestial events such as lunar eclipses, meteor showers, rare planetary phenomena and so-called “super moons” are attracting keen interest from a growing number of amateur astronomers. (via thknwco)
Read more »
Logan Webb steals the show in SF Giants’ win over PiratesWebb tossed eight shutout innings in a 2-0 win over the Pirates.
Read more »
Brain scans measure students' learning better than exams — here's the proofStudying the learning process in students via brain scans can help us decide which courses provide them with better learning abilities.
Read more »
Galaxy Digital Terminates Agreement to Acquire Crypto Custodian BitGoGalaxy Digital will not be acquiring the cryptocurrency custody provider BitGo.
Read more »