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NRC Planetary Science Decadal Survey: Presentations to the Satellites Panel September 2009

NRC Planetary Science Decadal Survey: Presentations to the Satellites Panel September 2009

The following presentations were made to the second meeting of the Satellites panel of the National Research Council’s Planetary Science Decadal Survey. The meeting was held on September 21-23, 2009 in Irvine, CA. Titles of the presentations are from the agenda for the meeting (note that ESA’s Michel Blanc substituted for ESA’s Michele Dougherty). Adobe 8.0 or higher is needed to open most of these files. Some are quite large and may take a few moments to load; please be patient.

NRC Planetary Science Decadal Survey: Presentations to the Mars Panel September 2009

NRC Planetary Science Decadal Survey: Presentations to the Mars Panel September 2009

The following presentations were made to the first meeting of the Mars panelof the National Research Council’s Planetary Science Decadal Survey. The meeting was held on September 9-11, 2009 in Washington, D.C. Titles of the presentations are from the agenda for the meeting. Adobe 8.0 or higher is needed to open most of these files. Some are quite large and may take a few moments to load; please be patient.

NRC Planetary Science Decadal Survey: Presentations to the Satellites Panel August 2009

NRC Planetary Science Decadal Survey: Presentations to the Satellites Panel August 2009

The following presentations were made to the first meeting of the Satellites panel of the National Research Council’s Planetary Science Decadal Survey. The meeting was held on August 24-26, 2009 in Washington, D.C. Titles of the presentations are from the agenda for the meeting. Some of these were joint sessions with other Decadal Survey panels. Adobe 8.0 or higher is needed to open most of these files. Some are quite large and may take a few moments to load; please be patient.

Presentations to the Panels of the NRC's Planetary Science Decadal Survey Now on SpacePolicyOnline.com

Presentations to the Panels of the NRC's Planetary Science Decadal Survey Now on SpacePolicyOnline.com

The presentations that were made to the first meetings of each of the five panels of the National Research Council’s (NRC’s) Planetary Science Decadal Survey are now available on SpacePolicyOnline.com. Visit our NRC page on the left menu to find those presentations and other links to NRC studies.

Three of the five panels met in August: Giant Planets, Satellites, and Inner Planets. The other two met in early September: Primitive Bodies and Mars. The presentations provide an overview of ongoing planetary science missions and briefings on the missions that scientists are proposing to begin in the next decade. The task of the Decadal Survey is to recommend to NASA which missions have the highest priority.

Each of the panels is scheduled to hold three meetings during the course of the study. The Satellites panel already held its second meeting and the presentations from that meeting will be posted soon. Check our calendar on the right for when other panels, and the Survey Committee itself, plan to meet, or visit the Decadal Survey’s website.

Events of Interest (Update 2): Week of September 28-October 2, 2009

Events of Interest (Update 2): Week of September 28-October 2, 2009

The following events may of interest in the coming week. See our calendar for more information. Note: Dates, times and witnesses for congressional hearings are subject to change, as are congressional floor schedules. Check the committee’s website, or the main sites for the House and Senate, for up to date information.

Monday, September 28

Tuesday, September 29

  • DOD appropriations (H.R. 3326) floor debate in the Senate should resume
  • Continuing Resolution (CR) for the first month of FY2010. The Senate is expected to pass it on Tuesday. Conference action and signature by the President must be completed by midnight Wednesday to avoid a government shutdown. FY2010 begins on Thursday, Oct. 1. The CR is attached to the FY2010 Legislative Branch appropriations bill (H.R. 2918), which passed the House on Friday.
  • Conferees on Energy-Water Appropriations (H.R. 3183) to meet at 6:15 pm in HC-5 U.S. Capitol

Wednesday, September 30

Thursday, October 1

  • A Day Without Space, Part 4. Sponsored by the Marshall Institute and the Space Enterprise Council of TechAmerica. 8:30-10:00 am. B-338 Rayburn House Office Building.
  • House Science and Technology Committee, Energy and Environment Subcommittee. Hearing on “Investigating the Nature of Energy, Matter, Space and Time.” 11:00 am, 2318 Rayburn House Office Building
NRC Planetary Science Decadal Survey: Presentations to the Giant Planets Panel August 2009

NRC Planetary Science Decadal Survey: Presentations to the Giant Planets Panel August 2009

The following presentations were made to the first meeting of the Giant Planets panel of the National Research Council’s Planetary Science Decadal Survey. The meeting was held on August 24-26, 2009 in Washington, D.C. Titles of the presentations are from the agenda for the meeting. Some of these were joint sessions with another Decadal Survey panel. Adobe 8.0 or higher is needed to open most of these files. Some are quite large and may take a few moments to load; please be patient.

GAO Says Constellation Program Needs a Sound Business Case

GAO Says Constellation Program Needs a Sound Business Case

The Government Accountability Office (GAO) issued a report today concluding that the cost and schedule for NASA’s Constellation program will remain uncertain “until a sound business case is established.” It reported that NASA’s cost estimate for Ares 1 and Orion is “up to $49 billion of the over $97 billion” to be spent on Constellation through 2020, though the agency will not know the program’s ultimate cost until technical and design challenges have been addressed.

The report was requested by the House Science and Technology Committee, which issued a press release in which Chairman Bart Gordon (D-TN) said it was clear NASA had not been given adequate resources to implement the Constellation program and therefore the GAO findings should come as no surprise, adding: “GAO’s report provides a sobering indication of the negative impact that funding shortfalls can have on complex and technically difficult space flight programs like Constellation, no matter how dedicated and skillful the program’s workforce is.”

Among GAO’s findings are the following:

“NASA is still struggling to develop a solid business case-including firm requirements, mature technologies, a knowledge-based acquisition strategy, a realistic cost estimate, and sufficient funding and time-needed to justify moving the Constellation program forward into the implementation phase.”

“NASA estimates that Ares I and Orion represent up to $49 billion of the over $97 billion estimated to be spent on the Constellation program through 2020. While the agency has already obligated more than $10 billion in contracts, at this point NASA does not know how much Ares I and Orion will ultimately cost, and will not know until technical and design challenges have been addressed.”

NASA Spacecraft Finds More Ice on Mars

NASA Spacecraft Finds More Ice on Mars

Images taken by NASA’s Mars Reconnaissance Orbiter (MRO) of new impact sites on Mars reveal frozen water just under the surface, NASA reports. Team members from NASA’s Jet Propulsion Laboratory, which manages the mission, held a media teleconference on Thursday discussing the findings. Although water-ice has been detected on Mars previously, most recently by the Phoenix lander, scientists were surprised by the location and purity of the recently discovered ice.

For the past few months, the team has been studying images captured by instruments aboard the MRO, including the High Resolution Imaging Science Experiment (HiRISE) camera, which showed evidence of a material at the bottom of several new craters that “looked a lot like ice,” said Shane Byrne of the University of Arizona, member of the HiRISE team. At one of these sites, situated between the northern pole and the equator, they found a larger area of bright material and used the MRO’s Compact Reconnaissance Imaging Spectrometer (CRISM) to determine its composition. “We saw a beautiful water ice spectral signature; no doubt about it: it was water ice,” said Selby Cull, from the Washington University of St. Louis and part of the CRISM team. During further observations, the ice dissipated at a faster rate than expected, leading them to conclude that the ice was about 99 percent pure, a fact that also took them by surprise. Previously, NASA’s Phoenix Lander had uncovered two kinds of ice with varying purity further north, leading scientists to expect dirtier ice as the norm.

The finding was taken to be a “relic of a previously wetter climate,” said Byrne and sheds light on the more recent changes of the Martian climate, which could point to further understanding of climate change on Earth. Scientists noted that NASA’s Viking 2 spacecraft – one of the earliest successful Mars lander programs – landed about 360 miles from the observed area in 1976. If the soil sampling arm on Viking had been able to dig down just 4 inches deeper it might have hit upon the ice as well. “We would have liked to have had that information about Mars in the last 30 years,” said Selby.

The team found ice exposed within a total of five new craters of depths varying between 1.5 feet and 8 feet. The findings are reported today in the journal Science (subscription required).

NRC Planetary Science Decadal Survey: Presentations to Primitive Bodies Panel September 2009

NRC Planetary Science Decadal Survey: Presentations to Primitive Bodies Panel September 2009

The following presentations were made to the first meeting of the Primitive Bodies panel of the National Research Council’s (NRC’s) Planetary Science Decadal Survey. The meeting was held on September 9-11, 2009 in Washington, D.C. Titles of the presentations are from the agenda for the meeting. Adobe 8.0 or higher is needed to open most of these files. Some are quite large and may take a few moments to load; please be patient. If a presentation is missing from this list, it was unavailable or too large to post.

Scientists Claim Widespread Water on the Moon

Scientists Claim Widespread Water on the Moon

A NASA briefing is scheduled today at 2:00 EDT to discuss recent scientific findings from lunar probes, but the news already has made headlines in many media sources: not only is there water on the Moon, but it is pervasive.

Planetary scientists apparently are as surprised as anyone. Some had theorized that water could have collected from comet impacts over the eons and remained bound up in soil and rocks in permanently shadowed areas of the lunar poles.

Now, data from NASA’s Moon Mineralogy Mapper (MMM) sensor on India’s Chandrayaan-1 lunar orbiting spacecraft reportedly show that water is widespread on the lunar surface. To confirm their findings, MMM scientists looked at data from the Cassini spacecraft that flew past the Moon a decade ago on its way to Saturn, and the Deep Impact spacecraft that went on to study comets. That data confirmed what the MMM sensor detected. The New York Times quotes Lawrence Taylor of the University of Tennessee, Knoxville as saying that analysis of the lunar rocks returned to Earth by the Apollo astronauts four decades ago “did show signs of water” but that Dr. Taylor and others “dismissed the readings as contamination from humid Houston air.” Dr. Taylor is quoted as saying that he was one of the scientists back in the Apollo era who was “firmly against lunar water” but now says “I’ve eaten my shorts.”

According to the New York Times, the new results suggest that water is “being created when protons from the solar wind slam into the lunar surface. The collisions may free oxygen atoms in the minerals and allow them to recombine with protons and electrons to form water.”

The presence of water on the Moon could make it easier for astronauts to live and work there, though it would have to be extricated from the soil. What, if any, impact these findings will have on the current debate about the future of human space flight and whether astronauts should return to the Moon remains to be seen.