Decoding the complete human genome & This meteor was an interstellar house crasher & Perseverance reaches Jezero Delta

 


Decoding the complete human genome

According to conventional wisdom, the genetic revolution we have experienced in the intervening decades was sparked when the human genome was decoded roughly twenty years ago. Although most of that is accurate—the Human Genome Project was completed in 2003, according to NH GRI—there is still approximately 8% of the genome that is missing.


The Telomere-to-Telomere consortium recently completed a new project that decoded a brand-new human genome using cutting-edge genetic methods. The T2T project used a single source to code a complete genome that represents an actual biological organism, in contrast to the Human Genome Project, which patched together DNA data from various sources (Science). 


The project coded more than 3 billion base pairs, which included five sequenced chromosomes. This is a landmark achievement, but it does not necessarily reveal the full diversity of human genetics, which the consortium plans to tackle next by sequencing many more genomes from an increasingly diverse population. The success of the project was largely due to long-read sequencing technology, which was unavailable at the time of the Human Genome Project. This technology enabled scientists to uncover portions of the genome with long repeats


This meteor was an interstellar house crasser 

According to NASA, when 'sped past the Sun in October 2017', astronomers got their first look at an interstellar object in our solar system. According to Cosmos, this was the first time we had observed it in action, despite the fact that interstellar objects have probably visited our solar system in the past and probably do so on a fairly regular basis. We felt that way, at least. 


Now, it appears that an interstellar meteor may have struck Earth in 2014, three years earlier. The object was tracked by the Center for Near-Earth Object Studies all the way to its point of impact off the coast of Papua New Guinea. At the time, it was thought to be a normal meteor impact—no big deal—but subsequent research suggests it came from another galaxy. 


Its incredible speed is the most obvious clue. When it crashed during its flyby, the object with the name CNE OS 2014-01-08 was travelling roughly 37 miles per second. It is highly unlikely that it was ever bound to our star because its speed is higher than the sun's escape velocity


Perseverance reaches JE Zero Delta

One of the primary objectives of the Perseverance Mission to Mars was to look for evidence of ancient life. NASA explained that it was sent to JE Zero Crater because scientists thought it might be a good place to look for ancient life forms. Perseverance has travelled a winding path toward JE Zero Delta since landing at JE Zero Crater. The JE Zero Delta is believed to be the remains of an ancient river delta that once contained water. It has made it, finally, after so long. As indicated by NASA, there is proof that water streamed into the region, made the delta, and later streamed out. Anywhere on Mars where water once existed might be a good place to look for evidence of life in the past; however, the delta is especially good because water stayed there for a long time. This is the best location on Mars to look for life, if it ever existed. NASA is looking for the best way to climb the 40 meters out of the crater floor now that Perseverance has reached the delta's edge. According to NASA, persistence will keep collecting rock sample cores for eventual return to Earth

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