All articles tagged with #earths water
New research indicates that during Earth's early molten phase, vast amounts of water were stored deep within the mantle, particularly in the mineral bridgmanite, which acted as a microscopic water reservoir. This hidden water played a crucial role in Earth's evolution, helping it transition from a fiery planet to a habitable world by facilitating internal circulation and surface water formation.
A new study suggests that comets may have delivered water to Earth, despite previous doubts raised by the 2014 Rosetta mission's findings. The mission found high deuterium levels in comet 67P, conflicting with Earth's water signature. Researchers now propose that cometary dust may have skewed these measurements, as deuterium-rich water adheres to dust grains, potentially altering observed ratios. This insight supports the theory that Jupiter-family comets contributed to Earth's water supply.
A NASA-led study has found that water on Comet 67P/Churyumov–Gerasimenko shares a similar molecular signature with Earth's oceans, suggesting comets could have contributed to Earth's water supply. This challenges previous findings from the Rosetta mission, which showed high deuterium levels in 67P's water. The new research indicates that cometary dust may have skewed earlier measurements, reopening the debate on comets' role in delivering water to Earth and offering insights into the early solar system's formation.
A University of Michigan-led study suggests that 'dark comets,' near-earth objects that exhibit nongravitational accelerations due to outgassing but lack visible comae, could have delivered a significant portion of Earth's water. These objects, which may constitute up to 60% of near-earth objects, likely contain ice and originate from the inner Main Asteroid Belt. The study highlights the need for further research to understand the prevalence and composition of dark comets, with future missions like Japan's Hayabusa2 expected to provide more insights.
Researchers from Northwestern University have discovered a colossal ocean three times the size of all Earth's surface oceans combined, hidden deep within the Earth's mantle. This finding challenges existing theories about the origins of Earth's water, suggesting that it may have come from within the planet rather than from comet impacts. The discovery could revolutionize our understanding of the Earth's water cycle and fundamental processes, prompting further research to determine if mantle melting is a common occurrence worldwide.
Scientists have discovered a massive ocean hidden 700 kilometers beneath the Earth's surface, challenging previous theories about the origins of Earth's water. This ocean, found within the Earth's mantle, is three times the size of all the planet's surface oceans combined and may have implications for our understanding of the planet's water cycle. The discovery was made using seismic waves and could revolutionize our understanding of one of Earth's fundamental processes.
A massive reservoir of water has been discovered deep beneath the Earth's surface in the transition zone, estimated to contain three times more water than all the oceans on the planet's surface. This water is trapped inside a rock called ringwoodite, which forms under intense pressure and can contain up to 1.5 percent water. The discovery suggests a whole-Earth water cycle and may help explain the abundance of liquid water on the planet's surface.
NASA's Surface Water and Ocean Topography (SWOT) satellite has provided stunning views of Earth's water, mapping the planet's global sea levels. The satellite collected data during its first full 21-day science orbit, revealing the varying surface heights of oceans, freshwater lakes, and rivers. Scientists are excited about the detailed information SWOT is providing, which will advance research on climate change and help communities prepare for a warming world. The satellite's Ka-band Radar Interferometer (KaRIn) instrument was used to create an animation showcasing sea surface height differences worldwide, highlighting ocean currents and regions of warmer water. SWOT's mission aims to measure water height over 90% of Earth's surface every 21 days, offering one of the most comprehensive views of Earth's water.
A recent study on the origin of Earth's water has ruled out one explanation but still doesn't know how it could have happened. However, the Bible provides the proper framework for understanding history, revealing that God created Earth covered in water around 6,000 years ago and that water poured out from inside the Earth during the global flood of Noah's day just 4,350 years ago. It takes a lot of faith to believe in evolutionary ideas, but we can put our faith and trust in the Creator who gave us physical water and quenches our spiritual thirst through the gift of his Son, the living water.
Scientists have ruled out the theory that water on Earth came from melted meteorites, by analysing melted meteorites that had been floating in space since the solar system formed some 4.5 billion years ago. They found that they had extremely low water content, indicating that water likely came to Earth on chondrite meteorites, or those that are not melted. This finding could also help inform the search for alien life and how water made it to other planets.
A new study published in the journal Nature has ruled out melted meteorites as the primary source of Earth's water. Researchers analyzed melted meteorites that had been floating around in space since the solar system's formation 4 1/2 billion years ago and found that they had extremely low water content. The team of researchers analyzed seven melted, or achondrite, meteorites that crashed into Earth billions of years after splintering from at least five planetesimals. The heating and melting of planetesimals leads to near-total water loss, regardless of where these planetesimals originated in the solar system and how much water they started out with.