Showing posts with label MAVEN Mission. Show all posts
Showing posts with label MAVEN Mission. Show all posts

Sunday, July 27, 2014

NASA Seeks Proposals for Commercial Mars Data Relay Satellites

One possible area for improvement is laser or optical communications. NASA successfully demonstrated laser communications technology in October 2013 with its Lunar Atmosphere and Dust Environment Explorer (LADEE) mission.

LADEE made history using a pulsed laser beam to transmit data over 239,000 miles from the moon to Earth at a record-breaking download rate of 622 megabits-per-second (Mbps).

NASA has issued a Request for Information (RFI) to investigate the possibility of using commercial Mars-orbiting satellites to provide telecommunications capabilities for future robotic missions to the Red Planet.

"We are looking to broaden participation in the exploration of Mars to include new models for government and commercial partnerships," said John Grunsfeld, associate administrator of NASA's Science Mission Directorate at the agency's headquarters in Washington.

"Depending on the outcome, the new model could be a vital component in future science missions and the path for humans to Mars."

The RFI details possible new business models that would involve NASA contracting to purchase services from a commercial service provider, which would own and operate one or more communication relay orbiters.

The solicitation is open to all types of organizations including U.S. industry, universities, nonprofits, NASA centers, and federally funded research and development centers, in addition to U.S. government and international organizations.

NASA is interested in exploring alternative models to sustain and evolve its Mars' communications relay infrastructure to avoid a communications gap in the 2020s.

The RFI encourages innovative ideas for cost-effective approaches that provide relay services for existing landers, as well as significantly improving communications performance.

Lisa May
Mars landers and rovers currently transmit their science data and other information to Earth either by a direct communication link or via orbiting satellites acting as relay stations.

The direct link is severely limited because of mass, volume, and power limits on the rovers.

To address these limits, NASA's Mars Exploration Program currently uses relay radios on its Mars science orbiters.

The spacecraft carry high-gain antennas and higher power transmitters that provide very high-rate, energy-efficient links between orbiters and surface missions as the obiters pass overhead.

Mars Reconnassaince Orbiter (MRO)
MARS Relay Strategy
"The current Mars relay strategy has been extremely successful in providing the science and engineering data returned from the Martian surface over the past decade," said Lisa May, lead program executive for NASA's Mars Exploration Program.

Because NASA has launched science orbiters to Mars on a steady cadence, the current strategy has been cost effective.

MAVEN
However, NASA has no scheduled Mars science orbiters after MAVEN arrives on the Red Planet in the fall.

This creates the need to identify cost-effective options to ensure continuity of reliable, high-performance telecommunications relay services for the future.

"Looking ahead, we need to seriously explore the possibility of the commercialization of Mars communications services," said May.

"This will offer advantages to NASA, while also providing appropriate return-on-investment to the service provider."

Thursday, May 2, 2013

NASA MAVEN Mission: Public invited to send names and messages to Mars

NASA is inviting members of the public to submit their names and a personal message online for a DVD to be carried aboard a spacecraft that will study the Martian upper atmosphere.

The DVD will be in NASA's Mars Atmosphere and Volatile Evolution (MAVEN) spacecraft, which is scheduled for launch in November.

The DVD is part of the mission's Going to Mars Campaign coordinated at the University of Colorado at Boulder's Laboratory for Atmospheric and Space Physics (CU/LASP).

The DVD will carry every name submitted. The public also is encouraged to submit a message in the form of a three-line poem, or haiku.

However, only three haikus will be selected. The deadline for all submissions is July 1. An online public vote to determine the top three messages to be placed on the DVD will begin July 15.

Stephanie Renfrow
"The Going to Mars campaign offers people worldwide a way to make a personal connection to space, space exploration, and science in general, and share in our excitement about the MAVEN mission," said Stephanie Renfrow, lead for the MAVEN Education and Public Outreach program at CU/LASP.

Participants who submit their names to the Going to Mars campaign will be able to print a certificate of appreciation to document their involvement with the MAVEN mission.

"This new campaign is a great opportunity to reach the next generation of explorers and excite them about science, technology, engineering and math," said Bruce Jakosky, MAVEN principal investigator from CU/LASP.

Bruce Jakosky
"I look forward to sharing our science with the worldwide community as MAVEN begins to piece together what happened to the Red Planet's atmosphere."

MAVEN is the first spacecraft devoted to exploring and understanding the Martian upper atmosphere. The spacecraft will investigate how the loss of Mars' atmosphere to space determined the history of water on the surface.

"This mission will continue NASA's rich history of inspiring and engaging the public in spaceflight in ongoing Mars exploration," said David Mitchell, MAVEN project manager at NASA's Goddard Space Flight Center in Greenbelt, Md.