Martian canals - Revision history

RichardWSmith: /* History */ Martian river valleys were not the canals seen from Earth.

2024-10-27T18:11:07Z

History: Martian river valleys were not the canals seen from Earth.

RichardWSmith: /* History */ Gave date of Mariner 9.

2024-10-27T18:09:24Z

History: Gave date of Mariner 9.

RichardWSmith: Expanded this article.

2024-10-27T18:07:42Z

Expanded this article.

Jburk at 00:09, 18 December 2018

2018-12-18T00:09:26Z

ChristiaanK: Created page

2013-02-06T17:26:42Z

Created page

New page

{{Stub}}
Early observers noticed first "seas" and later "canals" on the surface of Mars, starting with the discovery of [[Syrtis Major]] by [[Huygens]].<ref>P. Lowell - ''[http://archive.org/stream/marsitscanals00loweuoft/marsitscanals00loweuoft_djvu.txt Mars and its canals]'' 1906. p. 23</ref>

While illusory, the canals remain visible in telescopes.<ref>R.B. Thompson & B.F. Thompson - ''Astronomy hacks: Tips & tools for observing the night sky'' 2005. ISBN 978-0-596-10060-5 p. 162</ref>

==References==
<references />

[[Category:Astronomical Observations]]

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 As telescopes improved, by 1903 more and more people thought that there were no canals, but Lowell remained convinced until his death in 1916.
-It became clear that the dozens of canals were not there, but the possibility of some channel like features remained until the [[Mariner 4]] fly by in 1965, which proved they didn't exist.  However the [[Mariner 9]] spacecraft orbited Mars in 1971, and found river valleys, giving strong evidence that Mars at one time had [[Rivers on Mars | running water]].
+It became clear that the dozens of canals were not there, but the possibility of some channel like features remained until the [[Mariner 4]] fly by in 1965, which proved they didn't exist.  However the [[Mariner 9]] spacecraft orbited Mars in 1971, and found river valleys (far too small to have been the features thought to have been seen from Earth), giving strong evidence that Mars at one time had [[Rivers on Mars | running water]].
 ==References==

@@ Line 12: / Line 12: @@
 As telescopes improved, by 1903 more and more people thought that there were no canals, but Lowell remained convinced until his death in 1916.
-It became clear that the dozens of canals were not there, but the possibility of some channel like features remained until the [[Mariner 4]] fly by in 1965, which proved they didn't exist.  However the [[Mariner 9]] spacecraft orbited Mars and found river valleys, giving strong evidence that Mars at one time had [[Rivers on Mars | running water]].
+It became clear that the dozens of canals were not there, but the possibility of some channel like features remained until the [[Mariner 4]] fly by in 1965, which proved they didn't exist.  However the [[Mariner 9]] spacecraft orbited Mars in 1971, and found river valleys, giving strong evidence that Mars at one time had [[Rivers on Mars | running water]].
 ==References==

← Older revision		Revision as of 00:09, 18 December 2018
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−	[[Category:~~Astronomical Observations~~]]	+	[[Category:Astronomy]]

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 Early observers noticed first "seas" and later "canals" on the surface of Mars, starting with the discovery of [[Syrtis Major]] by [[Huygens]].<ref>P. Lowell - ''[http://archive.org/stream/marsitscanals00loweuoft/marsitscanals00loweuoft_djvu.txt Mars and its canals]'' 1906. p. 23</ref>
 While illusory, the canals remain visible in telescopes.<ref>R.B. Thompson & B.F. Thompson - ''Astronomy hacks: Tips & tools for observing the night sky'' 2005. ISBN 978-0-596-10060-5 p. 162</ref>
 ==References==