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IPCC Report: Global Greenhouse Emissions To Peak Before 2025

January 11, 2023 by SunniyaZ

According to an IPCC assessment released on Monday, there will be significant changes in the energy sector, such as a significant drop …

Once In 50,000-Year Comet To Be Visible From Earth Soon

January 11, 2023 by SunniyaZ

In the upcoming weeks, a newly found comet may pass by Earth and the Sun for the first time in …

Planet Spiralling Into Star May Offer Glimpse Into Earth’s End

December 26, 2022 by SunniyaZ

For the first time, astronomers have found a planet that is spiralling towards a catastrophic collision with its aging sun, …

Two Minerals – Never Before Seen On Earth, Found In Somalia Meteorite

December 3, 2022 by SunniyaZ

A massive space rock fragment found in Somalia was analyzed, and it contained elements never before observed in nature. The International …

Mysterious US Military Drone Returns To Earth After 908 Days In Space

November 19, 2022 by SunniyaZ

After nearly 2.5 years in orbit, a US military space drone landed at the Kennedy Space Center in Florida on …

Earth’s Oldest Stromatolites And The Quest For Life On Mars

November 15, 2022 by SunniyaZ

Grammar Check Because non-biological processes can produce roughly comparable structures and because such fossils frequently underwent extensive modification and metamorphism, the earliest morphological signs of life on Earth are frequently very contentious. What Are Stromatolites? Stromatolites are layered organo-sedimentary structures that reflect the intricate interactions between microbial communities and their environment. They have long been regarded as important macrofossils for the identification of life in ancient sedimentary rocks, but their biological origin has frequently come under fire. The oldest stromatolites on Earth come from the 3.48 billion-year-old Dresser Formation in the Pilbara region of Western Australia, and an article published on Friday in the journal Geology uses a variety of sophisticated two-and-three-dimensional analytical techniques to determine their biological ancestry. The Observation Of Stromatolites Despite the fact that these stromatolites have undergone severe diagenesis and weathering and do not contain any organic materials, a team led by Dr. Keyron Hickman-Lewis of the Natural History Museum, London, has used optical and electron microscopy, elemental geochemistry, Raman spectroscopy, and lab- and synchrotron-based tomography to identify a number of characteristics suggestive of a biological origin. In addition to completing laboratory tomography of 3D stromatolitic macrostructure, the team was able to use phase contrast imaging using the SYRMEP beamline at the Elettra Synchrotron in Trieste, Italy, to image Precambrian stromatolite microstructures at the first sub-micron pixel and voxel sizes. This made it possible to identify non-uniform layer morphologies, vacuum spaces created by the decomposition of organic matter, and vertical structures that resembled pillars and were thought to be microbial palisades, a common sign of phototrophic development. Recent weathering has mostly replaced the stromatolites of the Dresser Formation with hematite (iron oxide). This composition is very important for the hunt for life on Mars even if it makes organic geochemical investigations impossible. Conclusion Sedimentary rocks on the surface of Mars have undergone a comparable degree of ubiquitous oxidation, and the majority of their upper centimeters to meters are made up of iron oxides. The Dresser Formation stromatolites may be particularly pertinent materials in this regard to teach us about the specific type of biosignature preservation anticipated on Mars. We should look for morphological signs of life similar to those found in the Dresser Formation as the Mars 2020 Perseverance rover continues its study of Jezero crater and gets ready for sophisticated multi-technique analyses when Martian materials are eventually brought back to Earth.

Because non-biological processes can produce roughly comparable structures and because such fossils frequently underwent extensive modification and metamorphism, the earliest …

ESA Releases Haunting, Crackling Sound Of Earth’s Magnetic Field

November 5, 2022 by SunniyaZ

This week, the European Space Agency (ESA) released five minutes of eerie, crackling audio that depicts the sound of the …

NASA Caught The Sun Smiling And It’s The Most Happiest Thing

November 2, 2022 by SunniyaZ

Sometimes all it takes to make your day better is an unexpected smile. Well, it doesn’t get much bigger than …

NASA’s New Instrument Detects Over 50 Methane ‘Super-Emitters’

October 27, 2022 by SunniyaZ

We are learning more about how airborne dust affects the climate thanks to NASA’s Earth Surface Mineral Dust Source Investigation …

Secrets To The Moon’s Slow Escape Have Been Revealed In Earth’s Crust

October 16, 2022 by SunniyaZ

You wouldn’t know that the Moon is steadily moving away from Earth if you look up at it in the …

Scientists Aim To Search Ocean For Interstellar Object That Hit Earth In 2014

August 11, 2022August 10, 2022 by SunniyaZ

An object struck the water in the year 2014 not far from the coast of Papua New Guinea. The meteorite …

‘Wobble’ Made June 29, 2022, Shortest Day In Earth’s Recorded History

August 7, 2022 by SunniyaZ

This summer, the Earth had its shortest day ever due to an axis wobble that caused one rotation to take …