Parker Solar Probe, Take the Solar Plunge |
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Parker Solar Probe, Take the Solar Plunge |
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#46
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![]() Senior Member ![]() ![]() ![]() ![]() Group: Moderator Posts: 2780 Joined: 10-November 06 From: Pasadena, CA Member No.: 1345 ![]() |
Or how about ice crystals?
Could the probe squirt out a little water in front that would make a series of temporary shields of ice crystals? Could you design the atomizing device so that it would preferentially form ice crystals in the vacuum of space with maximum reflectivity? As it breaks down, would it also do decent job of absorbing heat? (And water is relatively light to carry.) So we'd be making an artificial comet! (Really wildly speculating out there) -------------------- Some higher resolution images available at my photostream: http://www.flickr.com/photos/31678681@N07/
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#47
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![]() Senior Member ![]() ![]() ![]() ![]() Group: Moderator Posts: 2254 Joined: 9-February 04 From: UK Member No.: 16 ![]() |
I notice from reading this months BIS magazine (thanks for the free copy Phil
![]() ABC article -------------------- My MER & MSL Imagery site - Martian Vistas ---- Twitter Feed (including sol by sol updates on Opportunity's activity)
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#48
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![]() Senior Member ![]() ![]() ![]() ![]() Group: Moderator Posts: 2780 Joined: 10-November 06 From: Pasadena, CA Member No.: 1345 ![]() |
the Australians are now also proposing a solar probe like mission to get to within 3-4 solar radii. No clues as to how they intend to do it though. Maybe they'll go at night? ![]() -------------------- Some higher resolution images available at my photostream: http://www.flickr.com/photos/31678681@N07/
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#49
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![]() Junior Member ![]() ![]() Group: Members Posts: 55 Joined: 1-May 06 From: Cincinnati, Ohio Member No.: 758 ![]() |
I understand that Johns Hopkins University Applied Physics Lab (JHU/APL) has been studying the solar probe mission. The usual debates about mission capability, payload, and cost continue to swirl.
My source says that the various factions continue to not play nicely (scientists, NASA headquarters, Goddard, contractors) all of which wastes time, money and effort. There was a Dilbert cartoon once (or perhaps a spoof) where the pointy-haired manager tells Dilbert that the spaceprobe weighs too much so he should delete the science instruments... R. |
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#50
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Administrator ![]() ![]() ![]() ![]() Group: Chairman Posts: 14037 Joined: 8-February 04 Member No.: 1 ![]() |
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#51
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![]() Senior Member ![]() ![]() ![]() ![]() Group: Members Posts: 1611 Joined: 3-August 06 From: 43° 35' 53" N 1° 26' 35" E Member No.: 1004 ![]() |
I have just received the author's copies of the March issue of the JBIS, with my article on the history of two 1970s European deep space missions, including the first close perihelion Sun probe study
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#52
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Member ![]() ![]() ![]() Group: Members Posts: 118 Joined: 18-November 07 Member No.: 3964 ![]() |
NASA Calls on APL to Send a Probe to the Sun
It seems they plan to use deployable solar arrays (however, the mission home page still states that there will be MMRTGs) |
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#53
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Newbie ![]() Group: Members Posts: 3 Joined: 6-June 08 Member No.: 4190 ![]() |
-------------------- "In the beginning the Universe was created. This has made a lot of people very angry and been widely regarded as a bad move"
Douglas Adams www.astrochat.co.uk |
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#54
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Member ![]() ![]() ![]() Group: Members Posts: 118 Joined: 18-November 07 Member No.: 3964 ![]() |
More detailed technical information here:
Solar Probe+ Mission Engineering Study Report |
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#55
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Member ![]() ![]() ![]() Group: Members Posts: 293 Joined: 29-August 06 From: Columbia, MD Member No.: 1083 ![]() |
Solar Probe Plus has been given the green light to move into Phase A. Basically, it's a real mission now. Launch is scheduled for 2018 currently, but that's due to budgetary restrictions, not technical ones. According to the APL managers, this mission could go 2-3 years earlier if additional funding was provided.
http://solarprobe.jhuapl.edu/ The launch date on this website is incorrect. |
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#56
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Member ![]() ![]() ![]() Group: Members Posts: 293 Joined: 29-August 06 From: Columbia, MD Member No.: 1083 ![]() |
It seems that the ESA Solar Orbiter mission (if selected) would compliment Solar Probe+, and possibly even launch on the same vehicle. ESA's mission won't get as close to the Sun, but having two spacecraft at different radii would allow some synergistic science.
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Guest_Sunspot_* |
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#57
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Guests ![]() |
Cool
We can never have too many solar missions ![]() ![]() |
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#58
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![]() Member ![]() ![]() ![]() Group: Members Posts: 539 Joined: 25-October 05 From: California Member No.: 535 ![]() |
A new article on Solar Probe Plus... 5 science instruments have been selected for the mission
http://science.nasa.gov/science-news/scien...2010/02sep_spp/ So will NASA or The Planetary Society have a "Send Your Name to the Sun" campaign before the launch in 2018? ![]() -------------------- 2011 JPL Tweetup photos: http://www.rich-parno.com/aa_jpltweetup.html
http://human-spaceflight.blogspot.com |
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#59
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Senior Member ![]() ![]() ![]() ![]() Group: Members Posts: 1339 Joined: 14-October 05 From: Vermont Member No.: 530 ![]() |
Actually only four instruments mentioned, but radio science isn't mentioned, so that might as well be a 5th.
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#60
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![]() Senior Member ![]() ![]() ![]() ![]() Group: Members Posts: 1297 Joined: 5-March 05 From: Boulder, CO Member No.: 184 ![]() |
What is the highest level of albedo that's been achieved with metals on Earth? If a shield had 100% reflectivity (impossible I know but theoretically), would that solve all heating problems, or does the albedo vary for different types of electromagnetic radiation? At least in visible light silver is pretty high (somewhere above 90%). Dielectric coatings can use interference to make reflectivity even higher. More info here on reflectivity of coatings: http://www.optosigma.com/miva/merchant.mv?...ection+Coatings What is being used on the shield in the solar probe design? -------------------- Steve [ my planetary maps page ]
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