Stratosphere microbes might hold clues to life on earth

نویسنده

  • Jayant Vishnu Narlikar
چکیده

On April 20, 2005, a 26.7 million cubic feet balloon carrying a 459 kg scientific payload with 38 kg of liquid neon was flown from the National Balloon Facility in Hyderabad operated by the Tata Institute of Fundamental Research (TIFR). The payload collected air samples from different heights ranging from 20 km to 41 km. After this operation, the payload was parachuted down and was safely retrieved. The collected samples were divided into two lots and independently analysed by the Centre for Cellular and Molecular Biology (CCMB), Hyderabad and the National Centre for Cell Science (NCCS), Pune. Both labs reported finding live microorganisms 1 . Such findings have enormous implications for the budding field of astrobiology besides providing important inputs into the question of how life started on our planet.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Resistance redux

the human species is one of the young­ est forms of life on earth, yet it has become the dominant force in evolu­ tion. Most of the main environmental prob­ lems—global warming, pollution, loss of biodiversity, land erosion and the emission of greenhouse gases—are caused, either directly or indirectly, by human activities. Optimists hope that these huge environ­ mental changes might be at least...

متن کامل

How do microorganisms reach the stratosphere?

A number of studies have demonstrated that bacteria and fungi are present in the stratosphere. Since the tropopause is generally regarded as a barrier to the upward movement of particles it is difficult to see how such microorganisms can reach heights above 17 km. Volcanoes provide an obvious means by which this could be achieved, but these occur infrequently and any microorganisms entering the...

متن کامل

Snot, Sticks, and Lots of Water: Iron Microbes as Minimalist Architects

Introduction: Substantial iron accumulation on the Earth’s surface can in many instances be attributed either directly or indirectly to microbial activity. Microbial mat deposits in various periods of Earth history were iron-mineralized to various degrees and may also contain remains of the organisms that formed them [1, 2, 3, 4, 5]. The common association of microbes and iron accumulations on ...

متن کامل

Drilling for microbes.

For scientists who study subseafloor sediment, it’s not unusual to spend a lot of time at sea aboard a ship with a gaping hole in its hull. Known as a moon pool, the hole serves as a portal for the ship’s weighty drilling equipment to retrieve core samples of seafloor sediment thousands of meters below. Aboard scientific research vessels, such as the JOIDES Resolution, University of Rhode Islan...

متن کامل

Origin and evolution of life on terrestrial planets.

The ultimate goal of terrestrial planet-finding missions is not only to discover terrestrial exoplanets inside the habitable zone (HZ) of their host stars but also to address the major question as to whether life may have evolved on a habitable Earth-like exoplanet outside our Solar System. We note that the chemical evolution that finally led to the origin of life on Earth must be studied if we...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2012