Mariner 2 |
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Mariner 2 |
 Aug 27 2012, 10:10 AM
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#1
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 Senior Member  Group: Members Posts: 1729 Joined: 3-August 06 From: 43° 35' 53" N 1° 26' 35" E Member No.: 1004  |
just a reminder: Mariner 2, the first successful unmanned planetary probe was launched on this day 50 years ago. it flew by Venus returning data the next 14 December
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Aug 29 2012, 05:11 PM
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#2
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 Senior Member Group: Members Posts: 1465 Joined: 9-February 04 From: Columbus OH USA Member No.: 13 |
And the beginning of a long comedown about the possibility of life on our planetary neighbors, when its infrared radiometer found for the first time that Venus was hot hot hot and not in a good way.
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Aug 29 2012, 08:42 PM
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#3
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 Member Group: Members Posts: 813 Joined: 29-December 05 From: NE Oh, USA Member No.: 627 |
QUOTE (jmknapp @ Aug 29 2012, 12:11 PM)  And the beginning of a long comedown about the possibility of life on our planetary neighbors, when its infrared radiometer found for the first time that Venus was hot hot hot and not in a good way. Well... lived that time. We were naive in thinking that a somwhat Earth sized planet would be Earthlike. I think the reality is far more rich. And we now know of habitats for life that were undreamed back then. We just had to grow up. And we still are ... look at the KEPLER worlds. Whole systems of planets crammed inside a Mercury sized orbit. And with that will leave the life question alone. Nuff said per forum rules. Thank you Mariner for starting that journey for us. Craig |
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Aug 29 2012, 10:10 PM
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#4
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 Senior Member Group: Members Posts: 3419 Joined: 9-February 04 From: Minneapolis, MN, USA Member No.: 15 |
I also think it's worth mentioning that Mariner 2, also named Mariner-R, was the first successful flight of the Ranger spacecraft bus. It's a tribute to the overall design that it survived (barely) to a Venus encounter, something it was not exactly designed to do.
-the other Doug -------------------- “The trouble ain't that there is too many fools, but that the lightning ain't distributed right.” -Mark Twain
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Aug 29 2012, 10:18 PM
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#5
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Member Group: Members Posts: 813 Joined: 29-December 05 From: NE Oh, USA Member No.: 627 |
Yeah.. agree with dvandorn.
AMAZING Mariner 2 succeeded! Tribute to the Mariner team! |
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Dec 2 2012, 11:28 AM
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#6
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Senior Member Group: Members Posts: 1729 Joined: 3-August 06 From: 43° 35' 53" N 1° 26' 35" E Member No.: 1004 |
Mariner 2's microwave scan of Venus, 14 December 1962. The three swaths show as three bumps (from left: nightside, terminator and dayside), the rest being space and noise. The limb darkening effect (first and third peaks lower than the second) proved that Venus' atmosphere was hot.
Attached thumbnail(s)
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Dec 2 2012, 08:38 PM
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#7
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Senior Member Group: Members Posts: 1276 Joined: 25-November 04 Member No.: 114 |
Truley amazing.
Thats a really cool header. Nicely done to the person who made it. |
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Dec 2 2012, 09:09 PM
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 Merciless Robot Group: Admin Posts: 8783 Joined: 8-December 05 From: Los Angeles Member No.: 602 |
That would be UMSF's own Astro0, and it is indeed a beauty!!!
-------------------- A few will take this knowledge and use this power of a dream realized as a force for change, an impetus for further discovery to make less ancient dreams real.
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Dec 3 2012, 09:10 AM
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#9
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 Member Group: Members Posts: 610 Joined: 23-February 07 From: Occasionally in Columbia, MD Member No.: 1764 |
QUOTE (Paolo @ Dec 2 2012, 06:28 AM) Mariner 2's microwave scan of Venus, 14 December 1962. The three swaths show as three bumps (from left: nightside, terminator and dayside), the rest being space and noise. The limb darkening effect (first and third peaks lower than the second) proved that Venus' atmosphere was hot. What's the source of this plot - a Science paper or a JPL report, or what? Nice to see the raw data like this. |
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Dec 3 2012, 03:40 PM
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#10
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Senior Member Group: Members Posts: 1729 Joined: 3-August 06 From: 43° 35' 53" N 1° 26' 35" E Member No.: 1004 |
QUOTE (rlorenz @ Dec 3 2012, 10:10 AM) What's the source of this plot it was printed in Scientific American and Sky & Telescope at the time. I also have the Science article but I don't remember seeing it there. I must check. you can find the same data, with much more details (including scan geometry) here: http://articles.adsabs.harvard.edu//full/1...000055.000.html |
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