Are We Alone?

Astro · Mar 3, 2005, 21:09

Nu chto narod, davaite escho raz pogovorim na temu est' li jizn' na Marse. Tol'ko teper' davaite poidyom dal'she i podumaem o vsei Vselennoi. Odni li mi tam?

I vot stateika po teme, chtob pomoch vam razogretca:

###
Are We Alone?

The chances are very high that you will encounter another intelligent life-form in the course of your life and when you do it may come as a big surprise. When, for instance, did you last visit the zoo? Remember those chimpanzees - very smart. And how about those dolphins at the marine aquarium? Brilliant! And that cat of yours is probably smarter than you think - but your dog will never admit it. Finally that grey parrot your Uncle Ned has may actually know what its talking about! Ultimately by paying attention to signs of intelligence on Earth, we may also come to recognize signs of intelligence amongst the stars.
http://www.universetoday.com/am/publ...ne.html?132005
###

Joshua12 · Mar 5, 2005, 15:28

http://www.seti.org

People have long gazed at the sky and wondered if there were other worlds — Earths — in orbit around the distant stars. Since the 1992 announcement of pulsar planets by Alex Wolszczan, more than 130 giant (Jupiter and Saturn size) planets in orbit about nearby stars have been discovered using ground-based telescopes. In 2007, NASA’s Kepler Mission will begin the space-based search for extrasolar planets. Over its planned observing lifetime, Kepler is likely to discover many hundreds of extrasolar planets both large and small. As a space-based satellite, Kepler is the first observatory capable of finding Earth-size worlds in the habitable zone of distant Suns. In other words, Kepler may find “good places to live.”

We humans likely discovered other worlds before we learned to write. We’ve long known about the 7 objects that move across the background of fixed stars: 5 planets and the Sun and Moon. The planets are Mercury, Venus, Mars, Jupiter, and Saturn. The Greek word, planetes, means “wandering star”. These naked-eye worlds were discovered and rediscovered in ancient cultures around the world as their varied names in different languages reveal.

On a clear night, you are likely to see one or more of the naked-eye planets as they are among the brightest star-like objects in the sky. In January 2005, planet seekers need to rise early, as Mercury, Venus, Mars and Jupiter are best seen before dawn. Saturn is up in the evening sky, and rises in “opposition” on January 13. Opposition means that Saturn is opposite the Sun in our skies; it rises as the Sun sets. Opposition signals the closest approach of Earth to Saturn, and this time it nearly coincides with the January 14 th landing of the Huygens on Titan. The positions of the planets change continuously as they orbit the Sun. Night-by-night observing guides make it easy to find and track the wandering stars.

Until telescopes were invented, we didn’t know about the dimmer and more distant worlds of our solar system: Uranus, Neptune and Pluto. With telescopes, Uranus was discovered in 1791, Neptune in 1846, and Pluto in 1930. Some argue that Pluto is actually not a planet, but the largest of the Kuiper Belt Objects (KBOs), tiny icy bodies that orbit the Sun far beyond Neptune. The first KBO was discovered in 1992, and several hundred more have been found since then. Bigger and better instruments expand our ability to discover more worlds beyond our own.

We’ve also discovered many moons besides our own. In 1610 Galileo pointed his telescope at Jupiter and discovered its four largest moons. Today, about 140 moons are known in our solar system. This number goes up as spacecraft exploring the outer planets find more and more tiny moons. Jupiter has more than 60 and Saturn more than 30.

New tools enable new discoveries. When the Kepler Mission begins to search for other worlds, it will certainly discover more giant planets because we know giant planets orbiting other Suns exist from our ground-based discoveries. As a space-based observatory, Kepler can measure the minute dip in a star’s light that signals a small planet like Earth is crossing the face of its Sun as seen from our solar system.

Today, we know of Earth-size worlds only in our own solar system. With Kepler, we may discover that Earths exist elsewhere in our galaxy, circling other Suns. We may find that planets like Earth are not rare, but common. Conversely, if we do not find other Earths, our concept of star and planet formation is open to question. In either case, our understanding of our planet and our place in the universe will change.

Sky Gazing:
Guides are offered at several user-friendly websites for exploring the night sky.

Sky and Telescope: Check out the links under “observing” http://skyandtelescope.com/

Abrams Planetarium: the classic “Skywatcher’s Diary” for introductory stargazing http://www.pa.msu.edu/abrams/Diary.html

Astronomy Magazine: Obtain a customized star map for your location and time using the “Stardome” feature: http://stardome.astronomy.com/stardome/default.aspx

http://www.seti.org/site/apps/nl/con...4993&ct=333211

Astro · Mar 5, 2005, 20:52

To Joshua12:

Spasibo za post, no ya bi poproshu v sleduyuschi raz postnut' ne stat'yu a tol'ko abstract. Esli lyudyam interesno budet pust' po linku prodoljat.

Ideya etogo topika ne copy-paste a obmen mneniyami. Ya bi toje mog postnut' zdes' vsyu stat'yu, no ne sdelal.

Joshua12 · Mar 6, 2005, 03:43

Я привожу всю статью если она небольшая, потому что так удобнее. Сожалею, что не буду следовать твоим рекомендациям.

Bests,
J12

Astro · Mar 6, 2005, 20:53

da radi boga, xot' vsyu knigu syuda copy-paste delai

Prosto posle etogo etot topik voobsche ne budut chitat' ... iz svoego opita znayu

Ya vsegda chitayu abstract i tol'ko potom reshayu prodoljit' ili net.

Joshua12 · Mar 7, 2005, 02:49

As far as I understand, in fact, few are able to read.

Mar 3, 2005, 21:09	#1
Astro just as it is Join Date: Jan 2004 Location: Gaillimh Posts: 982 Rep Power: 5 Reputation: 39	Are We Alone? Nu chto narod, davaite escho raz pogovorim na temu est' li jizn' na Marse. Tol'ko teper' davaite poidyom dal'she i podumaem o vsei Vselennoi. Odni li mi tam? I vot stateika po teme, chtob pomoch vam razogretca: ### Are We Alone? The chances are very high that you will encounter another intelligent life-form in the course of your life and when you do it may come as a big surprise. When, for instance, did you last visit the zoo? Remember those chimpanzees - very smart. And how about those dolphins at the marine aquarium? Brilliant! And that cat of yours is probably smarter than you think - but your dog will never admit it. Finally that grey parrot your Uncle Ned has may actually know what its talking about! Ultimately by paying attention to signs of intelligence on Earth, we may also come to recognize signs of intelligence amongst the stars. http://www.universetoday.com/am/publ...ne.html?132005 ### __________________ this is my signature ~ ~ :wq

Mar 5, 2005, 20:52	#3
Astro just as it is Join Date: Jan 2004 Location: Gaillimh Posts: 982 Rep Power: 5 Reputation: 39	To Joshua12: Spasibo za post, no ya bi poproshu v sleduyuschi raz postnut' ne stat'yu a tol'ko abstract. Esli lyudyam interesno budet pust' po linku prodoljat. Ideya etogo topika ne copy-paste a obmen mneniyami. Ya bi toje mog postnut' zdes' vsyu stat'yu, no ne sdelal. __________________ this is my signature ~ ~ :wq

Mar 6, 2005, 20:53	#5
Astro just as it is Join Date: Jan 2004 Location: Gaillimh Posts: 982 Rep Power: 5 Reputation: 39	da radi boga, xot' vsyu knigu syuda copy-paste delai Prosto posle etogo etot topik voobsche ne budut chitat' ... iz svoego opita znayu Ya vsegda chitayu abstract i tol'ko potom reshayu prodoljit' ili net. __________________ this is my signature ~ ~ :wq

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Mar 5, 2005, 15:28	#2
Joshua12 Banned Join Date: Nov 2003 Location: GroundZero Posts: 999 Rep Power: 0 Reputation: 10	http://www.seti.org People have long gazed at the sky and wondered if there were other worlds — Earths — in orbit around the distant stars. Since the 1992 announcement of pulsar planets by Alex Wolszczan, more than 130 giant (Jupiter and Saturn size) planets in orbit about nearby stars have been discovered using ground-based telescopes. In 2007, NASA’s Kepler Mission will begin the space-based search for extrasolar planets. Over its planned observing lifetime, Kepler is likely to discover many hundreds of extrasolar planets both large and small. As a space-based satellite, Kepler is the first observatory capable of finding Earth-size worlds in the habitable zone of distant Suns. In other words, Kepler may find “good places to live.” We humans likely discovered other worlds before we learned to write. We’ve long known about the 7 objects that move across the background of fixed stars: 5 planets and the Sun and Moon. The planets are Mercury, Venus, Mars, Jupiter, and Saturn. The Greek word, planetes, means “wandering star”. These naked-eye worlds were discovered and rediscovered in ancient cultures around the world as their varied names in different languages reveal. On a clear night, you are likely to see one or more of the naked-eye planets as they are among the brightest star-like objects in the sky. In January 2005, planet seekers need to rise early, as Mercury, Venus, Mars and Jupiter are best seen before dawn. Saturn is up in the evening sky, and rises in “opposition” on January 13. Opposition means that Saturn is opposite the Sun in our skies; it rises as the Sun sets. Opposition signals the closest approach of Earth to Saturn, and this time it nearly coincides with the January 14 th landing of the Huygens on Titan. The positions of the planets change continuously as they orbit the Sun. Night-by-night observing guides make it easy to find and track the wandering stars. Until telescopes were invented, we didn’t know about the dimmer and more distant worlds of our solar system: Uranus, Neptune and Pluto. With telescopes, Uranus was discovered in 1791, Neptune in 1846, and Pluto in 1930. Some argue that Pluto is actually not a planet, but the largest of the Kuiper Belt Objects (KBOs), tiny icy bodies that orbit the Sun far beyond Neptune. The first KBO was discovered in 1992, and several hundred more have been found since then. Bigger and better instruments expand our ability to discover more worlds beyond our own. We’ve also discovered many moons besides our own. In 1610 Galileo pointed his telescope at Jupiter and discovered its four largest moons. Today, about 140 moons are known in our solar system. This number goes up as spacecraft exploring the outer planets find more and more tiny moons. Jupiter has more than 60 and Saturn more than 30. New tools enable new discoveries. When the Kepler Mission begins to search for other worlds, it will certainly discover more giant planets because we know giant planets orbiting other Suns exist from our ground-based discoveries. As a space-based observatory, Kepler can measure the minute dip in a star’s light that signals a small planet like Earth is crossing the face of its Sun as seen from our solar system. Today, we know of Earth-size worlds only in our own solar system. With Kepler, we may discover that Earths exist elsewhere in our galaxy, circling other Suns. We may find that planets like Earth are not rare, but common. Conversely, if we do not find other Earths, our concept of star and planet formation is open to question. In either case, our understanding of our planet and our place in the universe will change. Sky Gazing: Guides are offered at several user-friendly websites for exploring the night sky. Sky and Telescope: Check out the links under “observing” http://skyandtelescope.com/ Abrams Planetarium: the classic “Skywatcher’s Diary” for introductory stargazing http://www.pa.msu.edu/abrams/Diary.html Astronomy Magazine: Obtain a customized star map for your location and time using the “Stardome” feature: http://stardome.astronomy.com/stardome/default.aspx http://www.seti.org/site/apps/nl/con...4993&ct=333211

Mar 6, 2005, 03:43	#4
Joshua12 Banned Join Date: Nov 2003 Location: GroundZero Posts: 999 Rep Power: 0 Reputation: 10	Я привожу всю статью если она небольшая, потому что так удобнее. Сожалею, что не буду следовать твоим рекомендациям. Bests, J12

Mar 7, 2005, 02:49	#6
Joshua12 Banned Join Date: Nov 2003 Location: GroundZero Posts: 999 Rep Power: 0 Reputation: 10	As far as I understand, in fact, few are able to read.