said in a statement.<\/a><\/p>\n\u201cIt\u2019s kind of a romantic idea, but our results suggest it\u2019s highly unlikely,\u201d Anslow said. <\/p>\n
Comets typically travel too fast and strike at too sharp an angle, causing the molecules to vaporize, researchers said. <\/p>\n
Comets typically travel too fast and strike at too sharp an angle toward Earth, causing the molecules to vaporize, researchers said. NASA<\/p>\n
But even if some building blocks survived in a \u201cone-off fluke,\u201d there may not be a concentration high enough to create life.<\/p>\n
\u201cIt would really have to be a one-in-a-million occurrence, because not only would you need an impact at just the right speed and just the right angle, you would also need everything to happen after that point, in terms of the concentration and the speed at which the chemical origins of life got going,\u201d said Anslow. <\/p>\n
\u201cWe can\u2019t rule out for certain that it happened that way. But it seems to be a really rare occurrence \u2013 at best, a one-off fluke.\u201d\u00a0<\/p>\n
Researchers said the molecular seeds of life could have come from several other places, such as asteroids, which hit Earth far more frequently. <\/p>\n
Although cometary delivery of life-building molecules on Earth seems unlikely, scientists found that our neighbors in the solar system may be more habitable. NASA\/Caltech<\/p>\n
Although cometary delivery of life-building molecules on Earth seems unlikely, scientists found that our neighbors in the solar system may be more habitable.<\/p>\n
Comets would be more likely to make it on the surface of Mars, which is smaller than Earth and has a thinner atmosphere, especially during the period of the solar system\u2019s development when the space rocks were more common.<\/p>\n
\u201cThis is not to say it definitely happened on Mars, of course, but suggests it would be unlikely if it happened on Earth and didn\u2019t happen on Mars,\u201d Anslow said. <\/p>\n
\u201cOr the other, perhaps more likely, alternative is that it didn\u2019t happen on either planet.\u201d<\/p>\n","protected":false},"excerpt":{"rendered":"A century-old theory that comets brought the building blocks of life to Earth may be completely wrong, according…\n","protected":false},"author":2,"featured_media":903598,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[32],"tags":[32021,2300,79,15850,780,965],"class_list":["post-903597","post","type-post","status-publish","format-standard","has-post-thumbnail","category-science","tag-comets","tag-earth","tag-science","tag-scientists","tag-solar-system","tag-world-news"],"_links":{"self":[{"href":"https:\/\/www.newsbeep.com\/us\/wp-json\/wp\/v2\/posts\/903597","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.newsbeep.com\/us\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.newsbeep.com\/us\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/us\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/us\/wp-json\/wp\/v2\/comments?post=903597"}],"version-history":[{"count":0,"href":"https:\/\/www.newsbeep.com\/us\/wp-json\/wp\/v2\/posts\/903597\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.newsbeep.com\/us\/wp-json\/wp\/v2\/media\/903598"}],"wp:attachment":[{"href":"https:\/\/www.newsbeep.com\/us\/wp-json\/wp\/v2\/media?parent=903597"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.newsbeep.com\/us\/wp-json\/wp\/v2\/categories?post=903597"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.newsbeep.com\/us\/wp-json\/wp\/v2\/tags?post=903597"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}