Credit & Copyright: D. Roddy
(LPI)
Explanation:
What happens when a
meteor hits the ground?
Usually nothing much, as most
meteors are small, and indentations they make are soon eroded away.
49,000 years ago, however, a large meteor created
Barringer Meteor Crater in Arizona, pictured above.
Barringer
is over a kilometer across.
In 1920, it was the first feature on Earth to be recognized as an
impact crater. Today, over 100
terrestrial impact
craters have been identified. Early this morning, the
Leonid Meteor Shower reaches its peak,
although no impacts of this magnitude are expected.
1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 |
Январь Февраль Март Апрель Май Июнь Июль Август Сентябрь Октябрь Ноябрь Декабрь |
NASA Web Site Statements, Warnings, and Disclaimers
NASA Official: Jay Norris. Specific rights apply.
A service of: LHEA at NASA / GSFC
& Michigan Tech. U.
Публикации с ключевыми словами:
meteor - crater - Метеор - метеорит - ударные кратеры
Публикации со словами: meteor - crater - Метеор - метеорит - ударные кратеры | |
См. также:
Все публикации на ту же тему >> |