In September 2007, a notable experiment was conducted with tardigrades, tiny organisms commonly referred to as water bears, to evaluate their capability to withstand conditions in space. A Russian Foton-M3 capsule transported dehydrated tardigrades into low Earth orbit, where they were subjected to the space environment on a European Space Agency (ESA) exposure platform for a duration of ten days. This platform facilitated the opening of trays containing the tardigrades directly to the vacuum of space.<\/p>\n
The tardigrades faced extreme conditions, including a nearly perfect vacuum and natural radiation levels ranging between 258 and 281 kilometers above Earth. Certain samples were protected from sunlight, while others were subjected to ultraviolet wavelengths that do not naturally penetrate the Earth’s atmosphere.<\/p>\n
Following the return of the capsule, researchers rehydrated the tardigrades. Those that experienced a vacuum without solar ultraviolet radiation resumed activity at rates similar to control groups kept on Earth. These revived tardigrades were in a dormant state during exposure, specifically a desiccated cryptobiotic state crucial for their survival.<\/p>\n
The experiment, labeled TARDIS (Tardigrades in Space), involved two species, Richtersius coronifer and Milnesium tardigradum, categorizing them into various groups according to different exposure conditions. The results indicated that exposure solely to a vacuum did not considerably affect survival rates when compared to Earth-bound control groups. However, exposure to ultraviolet radiation, particularly the complete solar spectrum, proved fatal for most tardigrades.<\/p>\n
The results indicate that while tardigrades can endure the conditions of space in a dormant, desiccated state, their survival is significantly reliant on protection from solar ultraviolet radiation. This research represents a significant advancement, demonstrating that multicellular organisms can withstand the harsh environment of space when dehydrated, paving the way for future studies on biological survival in outer space.<\/p>\n","protected":false},"excerpt":{"rendered":"
In September 2007, a notable experiment was conducted with tardigrades, tiny organisms commonly referred to as water bears, to evaluate their capability to withstand conditions in space. A Russian Foton-M3 capsule transported dehydrated tardigrades into low Earth orbit, where they were subjected to the space environment on a European Space Agency (ESA) exposure platform for […]<\/p>\n","protected":false},"author":2,"featured_media":375506,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"Default","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[179],"class_list":["post-375505","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized","tag-source-scienceblog-com"],"_links":{"self":[{"href":"https:\/\/wolfscientific.com\/index.php?rest_route=\/wp\/v2\/posts\/375505","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/wolfscientific.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/wolfscientific.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/wolfscientific.com\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/wolfscientific.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=375505"}],"version-history":[{"count":0,"href":"https:\/\/wolfscientific.com\/index.php?rest_route=\/wp\/v2\/posts\/375505\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/wolfscientific.com\/index.php?rest_route=\/wp\/v2\/media\/375506"}],"wp:attachment":[{"href":"https:\/\/wolfscientific.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=375505"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/wolfscientific.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=375505"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/wolfscientific.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=375505"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}