Space exploration is the use of astronomy and space technology to explore outer space. Physical exploration of space is conducted both by human spaceflights and by robotic spacecraft. While the observation of objects in space, known as astronomy, predates reliable recorded history, it was the development of large liquid-fueled rocket engines during the early 20th century that allowed physical space exploration to become a reality. Common rationales for exploring space include advancing scientific research, uniting different nations, ensuring the future survival of humanity and developing military and strategic advantages against other countries. Various criticisms of space exploration are sometimes made, generally on cost or safety grounds.

Space exploration has often been used as a proxy competition for geopolitical rivalries such as the Cold War. The early era of space exploration was driven by a "Space Race" between the Soviet Union and the United States; the launch of the first man-made object to orbit the Earth, the USSR's Sputnik 1, on October 4, 1957, and the first Moon landing by the American Apollo 11 craft on July 20, 1969 are often taken as the boundaries for this initial period. The Soviet space program achieved many of the first milestones, including the first living being in orbit in 1957, the first human spaceflight (Yuri Gagarin aboard Vostok 1) in 1961, the first spacewalk (by Aleksei Leonov) in 1965, the first automatic landing on another celestial body in 1966, and the launch of the first space station (Salyut 1) in 1971. However, the first sub-orbital spaceflight was by a German V2 rocket in 1942.

After the first 20 years of exploration, focus shifted from one-off flights to renewable hardware, such as the Space Shuttle program, and from competition to cooperation as with the International Space Station.

From the 1990s onwards, private interests began promoting space tourism and then private space exploration of the Moon (see GLXP).

In the 2000s, China initiated a successful manned spaceflight program, while Japan and India have also planned future manned space missions. Larger government programs have advocated manned missions to the Moon and possibly Mars sometime after 2010.

From Wikipedia under the GNU Free Documentation License
Tue Jul 7 00:51:23 2009

Is Space Exploration a good title for an expository essay or is the title to broad?
Q. I have to write a expository essay for my college class and I was just wondering if space exploration is a good title or not?
Asked by victorkoney2008 - Fri Dec 12 12:03:47 2008 - - 2 Answers - 0 Comments

A. Depends on how broad the essay is. Typically, i write the essay, then write the title.
Answered by suitti - Fri Dec 12 12:31:42 2008

should the government spend more money on space exploration or problems here?
Q. I both agree and disagree to spend more money on space exploration. And you? If not agreeing, What reasons?
Asked by masoitbh - Sun Mar 16 08:04:14 2008 - - 8 Answers - 0 Comments

A. We have a world of hurt, going on down here on Terra firma. I think that space thing could save a lot of people. Putting spy- satellites is one thing. Let us get real with our planet.
Answered by unknown - Sun Mar 16 08:19:19 2008

Would you rather fund space exploration or spend the money on the third world?
Q. Billions of dollars go into space exploration but do you think that we should put that money into sorting out problems on this planet before we explore others?
Asked by Shane - Tue May 19 13:24:05 2009 - - 15 Answers - 0 Comments

A. eri makes a very good point. If it was not spent on space exploration then there is nothing to say that it would be spent on the third world. In any case, science spending is not money down the drain. A lot of science spending, even on "pure" science has unforeseen practical spin offs. Work on nuclear physics a hundred years ago laid the foundations for nuclear power and the whole of modern electronics. These were not applications even conceived of when the research was undertaken. If we want to help the developing world there are several avenues. Simply giving food aid and the like has repeatedly been shown not to work. Removing trade barriers would help more. Perhaps the greatest threat to the developing world is global warming… [cont.]
Answered by Andrew S - Tue May 19 14:05:31 2009

From Yahoo Answer Search: "Space exploration"
Sun Jul 12 23:35:16 2009

See also:

  • Heavens AboveHeavens Above
    heavens-above.com
    Real-time satellite, ISS, and Space Shuttle orbital pass information, maps, and star charts.
  • NASA Skywatch Sightings CalculatorNASA Skywatch Sightings Calculator
    spaceflight.nasa.gov
    A Java applet that will calculate when spacecraft will be visible in the night sky over the viewer's own location.
  • Russian Space WebRussian Space Web
    russianspaceweb.com
    News and history of the Russian space program by Anatoly Zak, a journalist.
Custom search only Space exploration sites:

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Sun Jul 5 23:57:29 2009
Thirsk to receive honourary degree in space. - Canada.com
news.google.com
Thirsk to receive honourary degree in space .

Canada.com

``I am humbled, at this, the apogee of my space exploration adventure, to receive such a prestigious honour from my alma mater,'' he said from the space ...

Robert Thirsk gets honorary degree for out-of-this-world achievements The Canadian Press

U of C to grant orbiting astronaut honorary degree CBC.ca



all 32 news articles »
NASA's Moon orbiter: Spotting the Apollo landing sites - Collectspace.com
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NASA's Moon orbiter: Spotting the Apollo landing sites

Collectspace.com

NASA's Lunar Reconnaissance Orbiter was launched on June 18 as the United States' first return to the Moon ...

NASA: 'Risk is the price of progress' Spiked

Return To The Moon: First Images Kick Off Mapping Mission Science Daily (press release)

New moon vistas revealed msnbc.com

Times Online  - AZ Central.com  - Softpedia

all 110 news articles »
Astronauts' mission inspires pupils - The Press Association
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Astronauts' mission inspires pupils

The Press Association

"Often in major metropolitan areas space travel and space exploration doesn't get a lot of the media attention it did 40 years ago when we put the first man ...



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From Google News Search: "Space exploration"
Sun Jul 12 19:37:07 2009

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April 21st 2006 washington reuters President George W Bush offered Chinese President Hu Jintao on Thursday greater U S cooperation on space exploration and planned to send the head of NASA to China

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was nothing deliberate about it I was just trying to come up with something cool The two images I used were Parasitics a product of messing around with my art tablet below left and Exploration of Space below right I originally intended this to be a blue design as you can tell by my choice in source graphics However while I was mixing them together I added an

From Yahoo Image Search: "Space exploration"
Mon Jun 29 15:11:28 2009

Joseph Shoer Blog Archive 'Moon'
josephshoer.com
Joseph Shoer Blog Archive 'Moon'

Joseph

Sun, 12 Jul 2009 05:23:15 GM

the best part of that movie), and an homage to the days of the classic Heinlein-style sci-fi that followed on the heels of real . space exploration. ; it brings back the feel of when people followed both . space. movies and . space. news. ...

Lessons for the future of human space flight
nasa-image.blogspot.com
Lessons for the future of human space flight

Jishnu V Subhash

Mon, 29 Jun 2009 09:17:00 GM

We have only this one chance to develop a new post-Shuttle . space. transportation system; the next won t come for many decades. The US needs to demonstrate to itself as much as to others that it remains the leader in . space exploration. and ...

Less Remote (2008, September, Glasgow, International Astronautical ...
andymiah.wordpress.com
Less Remote (2008, September, Glasgow, International Astronautical ...

Andy Miah

ue, 30 Jun 2009 10:09:58 GM

The real motivation for being here and what I take from it is that . space exploration. engages us with a series of problems that are second to none. They apply across disciplines and the application to . space. requires our re-definition of ...

From Google Blog Search: "Space exploration"
Sun Jul 12 13:34:29 2009