Libmonster ID: U.S.-768
Author(s) of the publication: Olga BAZANOVA

Search for extraterrestrial intelligence (SETI) was the subject of a recent RAS-sponsored conference of astronomers and planetary scientists at the astrophysical laboratory in Karachayevo-Circassia. It's a fact, the delegates agreed, that as many as 168 planets have now been discovered in 144 stellar systems. Most of these planets are giants like Jupiter, though-unlike Jupiter-they are very hot; their atmosphere contains but negligible amounts of oxygen. Yet according to Doctor of Biology Alexei Topunov, laboratory head of the A.N. Bach Institute of Biochemistry (Russian Academy of Sciences), billions of years ago, at the birth of life on earth, our planet looked "oxygen-free" if viewed from any star nearest to us. Indeed, the globe had all too little oxygen, a gas vital to advanced forms of life (subsequently it came to be generated by green plants through photosynthesis). Still and all, the "contemporaries" of those primeval times are still around here on earth, though few in number. These are the pristine microorganisms subsisting on nitrogen, sulfur and even iron. But aeons ago their population could be far more numerous, they found themselves on a par with oxygen-consuming organisms and (who knows?) could have overcome their rivals in the struggle for a "place in the sun"...

The American astronauts, who landed on the moon in 1969, dismantled the pilotless Surveyor-3 that had touched down on the lunar surface two years before, and brought some of its parts back to earth. It's amazing, but terrestrial bacteria had survived in air-free space fine! Planetary scientists believe that such microorganisms could inhabit other worlds, too.

As to high temperature, it is no obstacle: for instance, terrestrial microorganisms have adjusted to t = 100 - 150°C on volcanoes and or not springs. It's inconceivaible that they could accommodate to temperatures above l,000°C, but others could! To find out, we should promote space biochemistry at all points, and explore celestial bodies with most different conditions so as to learn what forms of life can occur there.

Thanks to American Mars rovers as well as European and Russian automatic space probes today we have an idea about the composition of the Martian atmosphere, surface temperatures and the like. Even though none of the space vehicles has discovered traces of life there*, many SETI scientists still believe: some tokens of life might be there after all, but only deep underground (because of the rarefied atmosphere and sharp fluctuations of day- and night-time temperatures). It has been proved that once the Red Planet had water and rivers.** Consequently, what we should do is to take Martian ground samples, and then the presence of primitive microorganisms could not be excluded either.

Both biochemists and biologists support the possibility of organic life on Mars. They think it could be discovered at relatively shallow depths, down to 10 meters. The pattern is different on Venus and Mercury, though: due to the scorching sunrays, the inhabited level could be as deep as 100 meters and even lower beneath the surface. Such is the situation on the "terrestrial" planets of the solar system. As to the cold "Jovian" planets-say, Neptune (which is an ice-bound sphere) - life might be detected in the upper layers of the atmosphere. Protists, faring quite well in the earth's mountain glaciers, might exist on "Jovian" planets as well. Why not?

According to informed expert opinion, the best chances for the existence of intelligent life have the Jovian satellites: Io (Jupiter I), Europe (JII), Ganymede (JIII) and Callisto (JIV). These bodies have an atmosphere and display vigorous seismic and volcanic activity, and the temperatures are quite tolerable there. Yet another promising object is Titan, the largest and brightest satellite of Saturn (SVI). It is like the earth in many respects, the way it was 5 billion years ago, at the very inception of terrestrial life.

Comets, too, may spring surprises.*** As the US space vehicle DEEP IMPACT crashed into the Tempel-Tuttle comet, there occurred a discharge of a vast mass of organic matter. Planetologists allow for the presence of water-filled cavities and fissures in the cores of similar heavenly bodies, the safe niches for microorganisms. We can check up on this hypothesis on the moon: its southern pole is covered with ice deposits formed by the impact of comets. SETI researchers might find extraterrestrial life in lunar polar probes after all.

URALPRESS- INFORM, 2005

Prepared by Olga BAZANOVA


See: A. Portnov, "The Demise of Life on Mars", Science in Russia, No. 2, 2003. - Ed.

** See: A. Litvak, I. Mitrofanov, "Martian Seasons", Science in Russia, No. 4, 2004. - Ed.

*** See: A. Finkelstein, "Astronomy: Coordinate-Time Support", Science in Russia, No. 3, 2003. - Ed.


© libmonster.com

Permanent link to this publication:

https://libmonster.com/m/articles/view/MORE-ON-EXTRATERRESTRIAL-LIFE

Similar publications: LUnited States LWorld Y G


Publisher:

Libmonster OnlineContacts and other materials (articles, photo, files etc)

Author's official page at Libmonster: https://libmonster.com/Libmonster

Find other author's materials at: Libmonster (all the World)GoogleYandex

Permanent link for scientific papers (for citations):

Olga BAZANOVA, MORE ON EXTRATERRESTRIAL LIFE // New-York: Libmonster (LIBMONSTER.COM). Updated: 25.09.2018. URL: https://libmonster.com/m/articles/view/MORE-ON-EXTRATERRESTRIAL-LIFE (date of access: 24.05.2024).

Publication author(s) - Olga BAZANOVA:

Olga BAZANOVA → other publications, search: Libmonster USALibmonster WorldGoogleYandex

Comments:



Reviews of professional authors
Order by: 
Per page: 
 
  • There are no comments yet
Related topics
Publisher
Libmonster Online
New-York, United States
431 views rating
25.09.2018 (2068 days ago)
0 subscribers
Rating
0 votes
Related Articles
A HEAVENLY TREAT WITH A CHINESE TWIST
Catalog: Science 
8 days ago · From Peter Nielsen
MIGRATION TRANSFORMING CHINA
Catalog: Sociology 
20 days ago · From Peter Nielsen
China. KARAOKE EDUCATION
Catalog: Pedagogics 
38 days ago · From Peter Nielsen
QUOTATIONS FROM THE EIGHT BOOKS IN THE EARLY RUSSIAN CHRONICLES, OR HOW THE MEANING OF HISTORICAL MESSAGES CHANGES
Catalog: History 
60 days ago · From Peter Nielsen
ISRAEL-TURKEY: A CONTROVERSIAL PARTNERSHIP
Catalog: Political science 
64 days ago · From Peter Nielsen
WORLD POLITICS IN THE CONTEXT OF GLOBALIZATION
Catalog: Political science 
65 days ago · From Peter Nielsen
CHANDRIKA - "MOONLIGHT" OVER SRI LANKA
Catalog: Political science 
67 days ago · From Peter Nielsen
SUMMARY
Catalog: Pedagogics 
77 days ago · From Peter Nielsen
GLOBAL CLIMATE CHANGE: IMPLICATIONS FOR SOCIO-ECONOMIC DEVELOPMENT IN AFRICA
Catalog: Ecology 
79 days ago · From Peter Nielsen
A NEW STAGE IN THE PALESTINIAN-ISRAELI CONFRONTATION
Catalog: Military science 
80 days ago · From Peter Nielsen

New publications:

Popular with readers:

News from other countries:

LIBMONSTER.COM - U.S. Digital Library

Create your author's collection of articles, books, author's works, biographies, photographic documents, files. Save forever your author's legacy in digital form. Click here to register as an author.
Library Partners

MORE ON EXTRATERRESTRIAL LIFE
 

Editorial Contacts
Chat for Authors: U.S. LIVE: We are in social networks:

About · News · For Advertisers

U.S. Digital Library ® All rights reserved.
2014-2024, LIBMONSTER.COM is a part of Libmonster, international library network (open map)
Keeping the heritage of the United States of America


LIBMONSTER NETWORK ONE WORLD - ONE LIBRARY

US-Great Britain Sweden Serbia
Russia Belarus Ukraine Kazakhstan Moldova Tajikistan Estonia Russia-2 Belarus-2

Create and store your author's collection at Libmonster: articles, books, studies. Libmonster will spread your heritage all over the world (through a network of affiliates, partner libraries, search engines, social networks). You will be able to share a link to your profile with colleagues, students, readers and other interested parties, in order to acquaint them with your copyright heritage. Once you register, you have more than 100 tools at your disposal to build your own author collection. It's free: it was, it is, and it always will be.

Download app for Android