Newborn sun's weak winds a boon to Mars?

• Autores: Lisa Grossman
• Localización: New scientist, ISSN 0262-4079, Nº. 2954, 2014, pág. 10
• Idioma: inglés
• Texto completo no disponible (Saber más ...)
• Resumen

  • The first reading of charged particles streaming from a younger solar twin shows that this constant particle flow, or wind, is rather wimpy. If the baby sun behaved like this, its timidity perhaps bought time for early Mars to play host to water. Using the Hubble Space Telescope, the Brian Wood and his team checked out a star that is almost exactly like the Earth's 5-billion-year-old sun but is just 500 million years old. The star shows lots of flares and other activity but its wind is about half as strong as the sun's is today.