Late arrival of Earth's water ruled out

• Autores: Chelsea Whyte
• Localización: New scientist, ISSN 0262-4079, Nº. 3110, 2017, pág. 9
• Idioma: inglés
• Texto completo no disponible (Saber más ...)
• Resumen

  • The arrival of water on people's planet is shrouded in mystery. Their leading theory says icy meteorites brought it here after most of the planet and its core had formed, about 4.5 billion years ago. But now an analysis of isotopes from meteorites seems to imply that the wet stuff got here much sooner. Mario Fisher-Godde and Thorsten Kleine at the University of Munster Germany, looked the Tagish Lake meteorites that fell in British Columbia, Canada, in Jan 2000. They compared the abundance of ruthenium isotopes in these meteorites with the abundance in Earth's mantle.