Dynamic Response of the Environment At the Moon

Goddard's DREAM Center for Lunar Studies

DREAM is a virtual institute incorporating over 20 Investigators from over 10 Academic and Government Centers. DREAM IS:

  • A theory, modeling, data validation effort of the solar-lunar environment connection
  • Answering "how does the highly-variable solar energy and matter incident at the surface interface affect the dynamics of lunar volatiles, ionosphere, plasma, and dust?"
  • Emphasizing the dynamics-solar storms and impacts at the Moon
  • A modeling center that maintains, advances and integrates state-of-the-art neutral, plasma, and surface interaction models
  • Sponsored by NASA's Lunar Science Institute (NLSI) Headquartered out of Ames Research Center Moffett Field CA, 94035



NASA Completes LADEE Mission with Planned Impact on Moon's Surface        April 18, 2014

Ground controllers at NASA's Ames Research Center in Moffett Field, Calif., have confirmed that NASA's Lunar Atmosphere and Dust Environment Explorer (LADEE) spacecraft impacted the surface of the moon, as planned, between 9:30 and 10:22 p.m. PDT Thursday, April 17.

Read the Press Release

NASA Moon probe will bite the lunar dust soon: What is taught us              April 17, 2014

Space.com columnist Leonard David describes the great findings from the Lunar Atmosphere and Dust Environment Explorer (LADEE) mission. See:


DREAM2's Pamela Clark featured in Forbes Article on Planetary CubeSats       March 3, 2014

A set of DREAM2 investigators are currently examining the use of CubeSats for planetary studies. An article featuring discussions with Pamela can be found at:


LPSC releases its program                                                       February 10, 2014

Another exciting program has been put together for the upcoming LPSC meeting from 3/17-21 in The Woodland, TX. DREAM co-Is have numerous presentations, including active involvement in the special LADEE session on Tuesday morning.

See the full program at http://www.hou.usra.edu/meetings/lpsc2014/pdf/program.pdf.

Redistribution of lunar polar water to mid-latitudes                      January 10, 2014

In December 2013, DREAM scientists published a study in Planetary and Space Science on the possible transport of volatiles from the floor of lunar polar craters to the topside surface at mid-latitudes. Energetic processes like ion sputtering and impact vaporization were shown to eject/release polar water molecules residing within cold trapped regions, possibly with sufficient velocity to allow their redistribution to mid-latitudes. The team then considered the possibility that these polar-ejected molecules contributed to the 3 micron IR absorption featured observed by Chandrayaan-1, Cassini, and EPOXI.

See http://www.sciencedirect.com/science/article/pii/S0032063313001268 for more details.

DREAM scientists examine a 'self-sputtering' source to the lunar exosphere
                                                                                            December 12, 2013

Led by UCB's Andrew Poppe, a team of DREAM scientists examined surface sputtering from exo-ions. The lunar exosphere is produced by a combination of processes including thermal desorption, micrometeoroid bombardment, internal gas release, photon-stimulated desorption, and charged-particle sputtering. The team performed theoretical calculations to model an additional mechanism not previously considered for the Moon, namely the role that newly born ions from the exosphere itself play in sputtering additional neutrals from the lunar surface, a process known as self-sputtering. The DREAM scientists found that in certain plasma environments, the amount of neutrals produced through the self-sputtering process could yield a significant fraction of the lunar exosphere.

Read more at http://onlinelibrary.wiley.com/doi/10.1002/jgre.20148/abstract

NASA Goddard Joins New Virtual Research Institute               December 2, 2013

Researchers from NASA's Goddard Space Flight Center in Greenbelt, Md. have joined a new NASA virtual institute that will focus on questions concerning space science and human space exploration. Nine research teams from seven states were selected for NASA's Solar System Exploration Research Virtual Institute (SSERVI). The Goddard scientists include researchers from the Dynamic Response of the Environment at Asteroids, the Moon, and moons of Mars (DREAM2) project as well as other researchers in Goddard's Sciences and Exploration Directorate.

Read more at Press Release

DREAM2 selected as a SSERVI Team                                   November 6, 2013

NASA has selected nine research teams from seven states for a new institute that will bring researchers together in a collaborative virtual setting to focus on questions concerning space science and human space exploration.

The teams participating in the Solar System Exploration Research Virtual Institute (SSERVI) will address scientific questions about the moon, near-Earth asteroids, the Martian moons Phobos and Deimos, and their near space environments, in cooperation with international partners.

DREAM2, a scientific extension of the DREAM center, was selected as one of the SSERVI teams.

Read more at Press Release

DREAM scientists publish recursive wake study                       October 21, 2013

Lead by Dr. Mike Zimmerman (DREAM postdoc now at APL), team members published a study of the solar wind ion and electron inflow into lunar craters, but now with a secondary smaller crater inside (i.e., crater-in-a-crater). This 'recursive wake' simulation study also discusses sputtering losses of ice at crater floors, and compares such plasma-created losses with the reported crater 'frost' of 1-2% icy regolith reported by the LRO/LAMP team.

See http://www.sciencedirect.com/science/article/pii/S0019103513002698#

LADEE has a successful and spectacular night launch             September 9, 2013

On 6 September 2013, at 11:27 pm EDT, the Lunar Atmosphere and Dust Environment Explorer (LADEE) spacecraft successfully launched from Wallops Flight Facility. Congratulations to the LADEE team! More information and pictures can be found at:



LADEE Launch Scheduled for Sept 6 2013                               August 20, 2013

The Lunar Atmosphere and Dust Environment Explorer (LADEE) will be launched on Sept 6, 2013 at 11:27 PM from NASA Wallops Flight Facility. LADEE has three key instruments including one built by our DREAM co-i Tony Colaprete (the UV spectrometer), one built by NLSI PI Mihaly Horanyi (dust detector), and one built by GSFC's Paul Mahaffy (the neutral gas mass spectrometer). More information about the mission can be found at:


NLSI Forum Agenda Now Available                                           July 8, 2013

This year's Lunar Science Forum will be a virtual conference held July 16-18. The agenda of speakers is now available at http://lunarscience.nasa.gov/lsf2013/agenda. Connection information can be found at http://lunarscience.nasa.gov/lsf2013/lsf2013/welcome.

LRO investigators describe new chemistry from irradiation of lunar polar ices
                                                                                        June 25, 2013

Using data gathered by NASA's Lunar Reconnaissance Orbiter (LRO) mission, scientists believe they have solved a mystery from one of the solar system's coldest regions.a permanently shadowed crater on the moon. They have explained how energetic particles penetrating lunar soil can create molecular hydrogen from water ice. The finding provides insight into how radiation can change the chemistry of water ice throughout the solar system. A number of DREAM investigators and collaborators are authors of this study, including lead author Andrew Jordan at UNH.

Read more:http://www.nasa.gov/mission_pages/LRO/news/moon-ice.html

NLSI preparing for virtual Forum from July 15 to 19, 2013       June 14, 2013

The NASA Lunar Science Institute will broadcast the annual NASA Lunar Science Forum (LSF) as a virtual conference the week of July 15-19, 2013. The conference will be broadcast approximately 6 hours per day between the hours of 8 a.m. . 4 p.m. PDT, Monday-Friday. DREAM team members have submitted a large number of abstracts and the agenda will be available shortly.

For more detail see:http://lunarscience.nasa.gov/lsf2013/welcome

Workshop Without Walls: Lunar Volatiles Schedule                             May 20, 2013

The schedule for the NLSI Lunar Volatiles Workshop without Walls is now posted on the NLSI website. The Science Organizing Committee hopes you can join virtually on May 21-23, 7:30 am - 1:15 pm PDT (1030 am -415 pm EDT) to learn the latest in lunar volatiles.

Read More at:http://lunarscience.nasa.gov/workshop/lunar-volatiles/content/schedule

DREAM scientists identify new sources of lunar pickup ions using ARTEMIS in the geomagnetic tail                                                                                    May 9, 2013

Led by postdoc Andrew Poppe at the University of California at Berkeley, DREAM scientists have used recent data from NASA's twin probe ARTEMIS (Acceleration, Reconnection, Turbulence, and Electrodynamics of the Moon's Interaction with the Sun) mission to investigate the thin neutral atmosphere surrounding the Moon by looking at the trajectories of ions originating from the lunar atmosphere. These ions were detected by ARTEMIS while the Moon crossed Earth's geomagnetic tail, where the Moon is protected from the energetic blast of solar wind particles.

Read More....

NLSI to host upcoming Workshop Without Walls on Lunar Volatiles       May 1, 2013

Image of rocket and tweezers

DREAM co-I Dana Hurley is one of the science organizers of the upcoming workshop. Participation in the workshop is open to all members of the international research community. The workshop presentations will be streamed live on AdobeConnect. During the event, questions can be submitted online or through call-in audio. The entire workshop will be recorded and archived on the NLSI website. The workshop will take place over three half-day intervals from May 21-23, 2013.
See http://lunarscience.nasa.gov/articles/nlsi-workshop-without-walls-lunar-volatiles-part-1/ for more details.

Leaping Lunar Dust                                                                        March 14, 2013
LRO image across the north rim of Cabeus Crater

Electrically charged lunar dust near shadowed craters can get lofted above the surface and jump over the shadowed region, bouncing back and forth between sunlit areas on opposite sides, according to new calculations by NASA scientists.

The research is being led by Michael Collier at NASA's Goddard Space Flight Center, Greenbelt, Md., as part of the Dynamic Response of the Environment At the Moon (DREAM) team in partnership with the NASA Lunar Science Institute (NLSI), managed at NASA's Ames Research Center, Moffett Field, Calif.

Read More at: http://www.nasa.gov/topics/solarsystem/features/leaping-lunar-dust.html

NLSI South Pole - Aitken Basin Focus Group develops unique data base        February 14, 2013
NLSI South Pole

The NLSI SPA Focus Group developed a new visualization tool for examining this basin region of great interest. See: http://lunarscience.nasa.gov/articles/south-pole-aitken-basin-landing-site-database/

Solicitation for LADEE Guest Investigator Program                       January 13, 2013

This solicitation is for investigations in the LADEE Guest Investigator Program (GIP). The goals of the program are to: a) enhance the scientific return from the LADEE mission by broadening participation in the mission and b) augment the existing LADEE science team to include new members conducting investigations that broaden and/or complement the funded Principal Investigator (PI) and Co-Investigator (Co-I)-led investigations, thus maximizing the contribution of LADEE to the future exploration and scientific understanding of the Moon.

Read More....

2012 DREAM News