News Home, where you will find the "Current Top Stories"The Communication Center contains current news briefs from major Universities, NASA, ESA, and the top three Aviation Mfg.Science section contains all the latest knowledge in Medical Research, Archeology, Biology, and other General Science NewsCurrent Earth Science and Environmental discoveries.The E.A.R., Environmental Awareness Report. E.A.R. will keep you advised of Environmental Alerts, Government, University, and public projects. All the current space discoveries from Hubble, Spitzer, Chandra X-Ray, ESO, Gemini, Subaru, ESA, NASA, and many more. The latest in space theories from leading astronomers and scientist from around the world.The Space Weather Forecast Center by Scientific Frontline, Current up-to-date space weather, forecasts, alerts and warnings. Images from SOHO, GOES, and STEREO. Plus solar observations from Erika RixCurrent space missions newsThe Cassini Main Page. Containing all the latest news from the Cassini Spacecraft around Saturn. Leading into Cassini status reports, The Cassini Gallery of all the latest images from Cassini. Seeing Saturn and all her moons like never before.Daily Sky maps, Celestial Events Calendar.Observatories Gallery, Images from the Great Observatories on Earth and Above. The Stellar Nights  Gallery, An amateur astronomical collection from John Crilly, Richard Handy, Erika Rix, and Paul RixCloudy Nights Telescope Reviews / An Atronomical Community.The latest in Computer, Nanotechnology, and General Technological advancements.The latest in Aviation achievements in civil, military, and space aviationGlobal News Videos, a different kind of news covarage that often overlooked.The news archive from Scientific Frontline's past articles. A world of knowledge at your fingertips.Abstracts, Journals, and Technical papers maintained by Scientific Frontline. The Gateway to all the galleries in the Scientific Frontline collectionSea Shepherd Org. Help save the whales!Research Department | Staff and Researchers OnlySite Related links from major universities, government and private research labs.Assorted Downloads related to space, science, aviation, including screensavers and ASTROMONY SOFTWARE, and other endorsed programs.Scientific Frontline Forum | HypercubeThe foundation of an online publication by SFL ORG. News Network called Scientific FrontlineContact page to Scientific Frontline / SFL ORG. News NetworkDisclaimer / Legal Notice for use of the SFL ORG. News Network's publication Scientific Frontline
Previous Photo Next Photo
Cassini Gallery 2007
Cassini Gallery 2010
Cassini Gallery 2011
Cassini Gallery 2006
Cassini Gallery 2008
Cassini Gallery 2012
Cassini Gallery 2009

Cassini Radar Zooms Out on Menrva
Aug. 15, 2011

Cassini Radar Zooms Out on Menrva
Aug. 15, 2011
Title : Cassini Radar Zooms Out on Menrva
Description : This image, created by combining two different types of radar images from NASA's Cassini spacecraft, reveals more details of Titan's crater Menrva (at left) and its surroundings than a single image could provide.

Centered at 20 degrees north latitude and 77 degrees west longitude on Titan, the image is an overlay of two synthetic-aperture radar (SAR) images produced by Cassini's Titan Radar Mapper. The narrower, arc-shaped strip running from left to right was acquired on March 26, 2007; the background was taken on June 21, 2011, using a technique called HiSAR. This technique was developed by radar engineers to take advantage of observing time when Cassini was not close enough to Titan to allow normal radar operation.

HiSAR, which stands for high altitude synthetic aperture radar, uses only the center of the radar's beam, with a low- resolution radar mode, giving the radar the equivalent of a wide-angle and telephoto lens. HiSAR also allows images to be produced when the signal strength is low due to extreme distance or poor viewing angles. Although HiSAR does not produce the same resolution as normal synthetic aperture radar, this innovative technique permits more coverage. Without HiSAR, only a small segment of Menrva would have been visible and the context for the channel system to Menrva's right would have been unknown.

The image covers an area 528 miles (850 kilometers) high and 932 miles (1,500 kilometers) wide.

The Cassini-Huygens mission is a cooperative project of NASA, the European Space Agency and the Italian Space Agency. NASA's Jet Propulsion Laboratory, a division of the California Institute of Technology in Pasadena, manages the mission for NASA's Science Mission Directorate, Washington, D.C. The Cassini orbiter was designed, developed and assembled at JPL. The radar instrument was built by JPL and the Italian Space Agency, working with team members from the United States and several European countries.
Date : Aug. 15, 2011
Credit : NASA/JPL-Caltech
Source : NASA
File Type : JPG
File Size : 1.90MB

Powered by Gallery v1 RSS

SFL ORG Educational News Network

Copyright Notice
The Images and Video's in the gallery pages may be protected by copyright. You may download one copy for non-commercial personal use to be displayed on your personal computer. Use other then non-commercial requires that you obtain permission if copyrighted from the copyright holder. See disclaimer page for more detail. We will help direct you to the proper source if you are unsure of copyright holder or your usage. Please always state proper source / credit.

Scientific Frontline®, Stellar Nights®, E.A.R.®, and Environmental Awareness Report®”
Are Registered Trademarks of the
Online Publication of the SFL ORG. Educational News Network
Oklahoma City, Oklahoma USA
A Not-for-Profit Educational News Service
© 2005 - 2012 All Rights Reserved

Home | Comm. Center | Space Weather Center | Galleries | About Us | FAQ | Site Map | Contact Us | Privacy Policy | Terms of Service