All articles tagged with #meteorites
A NASA-led study of Apollo-era lunar regolith using triple oxygen isotope analysis finds only a small fraction of Earth's ocean water could have been delivered by meteorites over the past four billion years, challenging the long-held view that late meteorite impacts were the primary source of Earth's oceans.
NASA’s Apollo soil study using triple oxygen isotopes shows late meteorite delivery could account for only a small fraction of Earth’s ocean water since ~4 billion years ago, implying meteorites were not the dominant water source; the Moon’s regolith preserves a long impact history, and Artemis-era samples could reveal more.
The article explores the hypothesis that life on Earth may have originated from microorganisms on Mars, which could have been transported via meteorites. It discusses the timing of planetary formation, early conditions on Mars and Earth, and the challenges of microbial survival during space travel, ultimately questioning whether Earth’s life could have come from Mars or if it originated independently on Earth.
Researchers analyzing rare meteorites called carbonaceous chondrites from Antarctica have revealed their potential as sources of valuable materials like transition metals and water for future space mining, although concentrations are lower than Earth's deposits. These primitive asteroids could support in-space infrastructure development, but mining them remains complex and experimental, with specific asteroid types showing more promise for resource extraction.
Gold can be found in unexpected places such as the human body, seawater, meteorites, volcanoes, and even within plants, highlighting its diverse natural presence beyond traditional mining sources.
MIT researchers have discovered chemical remnants in meteorites and ancient rocks that provide the first tangible evidence of proto-Earth's original material, revealing insights into the planet's early composition before the giant impact that formed the Moon.
MIT researchers have discovered chemical remnants in ancient rocks and meteorites that suggest they contain traces of proto-Earth's original material, providing new insights into the planet's early composition and the impact that shaped its evolution.
A new study suggests that Jupiter's early growth played a crucial role in shaping the solar system by creating gaps and rings in the protoplanetary disk, preventing material from falling into the sun and influencing the formation of Earth and other planets, as well as the timing of meteorite formation.
New research suggests that Jupiter's early rapid growth influenced the formation of the solar system by creating rings and gaps that led to the late formation of primitive meteorites called chondrites, and also helped shape the orbits of Earth, Venus, and Mars.
Scientists have discovered ancient traces of 'proto Earth' in the deepest rocks on Earth, providing rare direct evidence of Earth's earliest composition and offering insights into planetary formation and early solar system conditions.
A new study suggests Jupiter is about 4.6 billion years old, with a more complex formation process involving chondrules, tiny molten droplets in meteorites, which serve as a timeline for planetary growth, challenging previous simpler models.
An all-female Brazilian research group, As Meteoriticas, is dedicated to collecting and preserving meteorites across Brazil, contributing to scientific study and public awareness amid growing local interest in space rocks.
Scientists used the formation of chondrules in meteorites to date Jupiter's formation to about 4.6 billion years ago, linking its rapid early growth to the creation of these molten droplets during high-speed collisions in the early solar system.
Chinese and American scientists have successfully produced large quantities of hexagonal diamonds, a structure believed to be superhard, from graphite using high pressure and laser heating, marking a significant breakthrough in material science with potential applications in electronics and superhard materials.
This article highlights 12 significant historical discoveries that changed our understanding of the past, including the asteroid impact that caused the dinosaurs' extinction, the discovery of the Terracotta Army, confirmation of meteorites from space, the Viking settlement in North America, and the potential existence of a ninth planet beyond Neptune.