Earth is the only planet in the Universe known to host life, but even it was desolate at first.
), the Murchison meteorite exploded in the sky over Murchison, Victoria, on 28 September 1969. It was a widely observed event; people collected a trove of fragments from the area afterward. It has since become one of the most studied space rocks in history.
Among many interesting finds, the Murchison meteorite was packed with amino acids. Scientists have so far identified more than 70 amino acids from the meteorite, only 19 of which are known from Earth,This has stirred widespread fascination, suggesting that life on Earth's basic chemical building blocks can also easily form elsewhere.
A meteor with outsides fused in the heat of hitting Earth's atmosphere and its organic-rich grainier inside. In the new study, Kebukawa and her colleagues investigated how amino acids might arise on a meteorite like this and how long it might take. Based on their results, plus the expected dose of gamma radiation from decaying aluminum-26 in meteorites, they estimate it would take between 1,000 and 100,000 years for this process to generate the amount of alanine and β-alanine found on the Murchison meteorite., or the spontaneous generation of life, the researchers say this study shows how reactions sparked by gamma rays can produce amino acids on a meteorite, potentially contributing to the origin of life on Earth.
Singapore Latest News, Singapore Headlines
Similar News:You can also read news stories similar to this one that we have collected from other news sources.
A warming planet may have set the stage for dinosaurs to rule the EarthClimate change around the Triassic-Jurassic mass extinction may have wiped out some of the competition—leaving dinosaurs to rule the planet.
Read more »
NASA Adjusting James Webb Orbit to Get Damaged by Meteorites LessNASA's James Webb Space Telescope is adjusting its orbit to make sure it won't get pelted with even more micrometeorites.
Read more »
Why working at Disney, the ‘Happiest Place on Earth,’ is a misery for manyGabby Alcantara-Anderson, 31, has worked at Disney World for almost a decade, but she still struggles to make ends meet. Her salary — combined with wages from her husband and teenage daughter, who …
Read more »
Pentagon says no alien life on Earth yet: 'The answer's no'In its review of hundreds of UFO incidents, Pentagon officials say they have not seen evidence so far that any are from extraterrestrials.
Read more »
Federal officials say urgent action needed to protect shrinking Colorado River reservoirsFederal officials call upon states to prepare for urgent water cuts — and permanent reductions as a hotter, drier climate shrinks the Colorado River.
Read more »
As public anger mounts, Peru's lawmakers reject reform needed to hold early elections | CNNAs Peru explodes in protest with supporters of its former president taking to streets, lawmakers on Friday rejected a constitutional reform that is needed to hold early general elections in 2023.
Read more »