International cooperation is not so popular right now. But it is what is needed to protect Mars from contamination
, Mars is the most-studied planet in the solar system. Satellites zip around it. Rovers trundle over its surface. A helicopter may soon clatter through its skies, for a clutch of new missions are either on their way or planned to launch soon.
Astrobiologists identify two kinds of risk in putative encounters with alien life forms that are not actually toting ray guns. The first, “forward contamination”, is that hardy micro-organisms from Earth might hitch a ride with a space probe and set up shop on landing. The second, “back contamination”, concerns the reverse: that samples returned to Earth might bring alien microbes with them.
Back contamination is the less worrying of the two. Lurid suggestions that Martian bugs might infect human beings ignore the fact that their biochemistry would almost certainly be too different from that of terrestrial organisms for this to happen. Sealed laboratories could provide reassurance for sticklers.
日本 最新ニュース, 日本 見出し
Similar News:他のニュース ソースから収集した、これに似たニュース記事を読むこともできます。
Elon Musk on the A.I. Apocalypse, Being the Emperor of Mars, and Texting With Kanye WestElon Musk talks about Life, The Universe and Everything in remarkable new interview
続きを読む »
NASA's new Mars rover to record '7 minutes of terror' descent in HD - Business InsiderBusiness Insider is a fast-growing business site with deep financial, media, tech, and other industry verticals. Launched in 2007, the site is now the largest business news site on the web.
続きを読む »
What to know about China, UAE and US missions to Mars this summerThree nations are taking aim at the Red Planet this month.
続きを読む »
Watch TOMORROW X TOGETHER Sing BTS, Bruno Mars, and Justin Bieber in a Game of Song Association.TXT_bighit Sings BTS, Bruno Mars, and Justin Bieber in a Game of SongAssociation
続きを読む »
Shohei Ohtani makes blunder as first baserunner under MLB's new extra-inning ruleShohei Ohtani, who made the last out in the ninth inning, was placed on second to start the top of the 10th against the Oakland A's.
続きを読む »
Tom Hanks 'sells' hot dogs during A's games. Which other celeb voices should be used on MLB broadcasts?The Oakland A's announced Friday that Tom Hanks, a native of the East Bay, has offered his voice to be played during games.
続きを読む »