Scientists have uncovered the oldest impact crater on Earth in Australia, dating back 3.024 billion years. This massive cosmic collision occurred during the Mesoarchean era, when continents were just forming, and triggered a unique geological phenomenon that enriched the Earth's crust with precious metals.
An international team of scientists has identified garnet in a Martian meteorite for the first time, a mineral never before observed on the Red Planet. Published on June 16, 2026, in Geochemical Perspectives Letters, this discovery opens new research avenues into Mars' internal evolution and processes that shaped its surface over 4.5 billion years ago.
Scientists have confirmed that fragments discovered in Cuchillo Co, in Argentina's La Pampa province, belong to the meteorite that recently impacted the region. This discovery enables researchers to advance their study of this space object that successfully traversed Earth's atmosphere.
Un meteorito de aproximadamente 90 centímetros ingresó a la atmósfera generando un fuerte estampido sónico que se sintió en múltiples estados. El fenómeno fue reportado desde Delaware hasta Montreal, sin registrar daños ni heridos.
Científicos brasileños identificaron más de 600 fragmentos de "geraisitas", un tipo de tectita formada por el impacto de un asteroide que dispersó material vítreo hasta 900 kilómetros de distancia. El misterioso cráter del impacto aún no ha sido localizado.
Alfredo S. Quiroga
