Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

DARE for planetary exploration

06.11.2002


Balloons outfitted with innovative steering devices and robot probes could be the future of planetary exploration. Dr. Alexey Pankine, a fellow at the NASA Institute for Advanced Concepts (NIAC), presented an analysis of balloon applications for planetary science at the World Space Congress in Houston, Texas last month. His study, entitled Directed Aerial Robot Explorers or DARE, is funded by NIAC.



At the center of the DARE concept are balloons that can float in planetary atmospheres for many days. Balloons have long been recognized as low-cost observational platforms and are routinely used in observations of the Earth’s atmosphere. In 1984, two balloons were successfully deployed in the atmosphere of Venus for a short mission. However, what has restrained the wider use of balloons in planetary exploration was the inability to control their paths in strong atmospheric winds. Attaching an engine to a balloon would convert it into an airship and make it too heavy, too power dependent and too expensive to send to another planet or high into the atmosphere.

Faced with this problem, Global Aerospace Corporation has proposed to use an innovative device called the StratoSail® that allows the user to control the path of a planetary balloon. The device is essentially a wing that hangs on a long tether (several kilometers) below the balloon. Strong winds and denser atmosphere at the wing altitude create a sideways lifting force that pulls the entire system across the winds.


The DARE concept analyzes the use of the StratoSail® device on several planets in our Solar System that have atmosphere – Venus, Mars, Jupiter and Titan (a satellite of Saturn). Dr. Pankine reports that a small, light wing will pull the balloon with a velocity of about 1 m/s across the winds on those planets. This may not seem much, but applied constantly (without consuming any power!) for the duration of a long mission (100 days) it would allow for pole-to-pole exploration of the atmospheres of Venus and Titan, and targeted observations of Mars and the vast Great Red Spot of Jupiter.

DARE platforms would carry high-resolution cameras and other instruments to study surfaces and atmospheres of the planets. Dr. Pankine envisions small probes being deployed from DARE platforms over a site of interest. These robot-probes would, for example, analyze atmosphere during their descent on Venus and Jupiter or crawl around after soft landing on the surfaces of Mars and Titan.

“The ability to alter the flight path in the atmosphere and to deploy the probes would vastly expand the capabilities of planetary balloons and make possible breakthrough observations that are not feasible with any other platform,” says Dr. Pankine. The figure illustrates a DARE platform operating at Venus.

Alexey A. Pankine | EurekAlert!
Further information:
http://www.gaerospace.com/press-releases/nov2002.html

More articles from Earth Sciences:

nachricht Sediment from Himalayas may have made 2004 Indian Ocean earthquake more severe
26.05.2017 | Oregon State University

nachricht Devils Hole: Ancient Traces of Climate History
24.05.2017 | Universität Innsbruck

All articles from Earth Sciences >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Can the immune system be boosted against Staphylococcus aureus by delivery of messenger RNA?

Staphylococcus aureus is a feared pathogen (MRSA, multi-resistant S. aureus) due to frequent resistances against many antibiotics, especially in hospital infections. Researchers at the Paul-Ehrlich-Institut have identified immunological processes that prevent a successful immune response directed against the pathogenic agent. The delivery of bacterial proteins with RNA adjuvant or messenger RNA (mRNA) into immune cells allows the re-direction of the immune response towards an active defense against S. aureus. This could be of significant importance for the development of an effective vaccine. PLOS Pathogens has published these research results online on 25 May 2017.

Staphylococcus aureus (S. aureus) is a bacterium that colonizes by far more than half of the skin and the mucosa of adults, usually without causing infections....

Im Focus: A quantum walk of photons

Physicists from the University of Würzburg are capable of generating identical looking single light particles at the push of a button. Two new studies now demonstrate the potential this method holds.

The quantum computer has fuelled the imagination of scientists for decades: It is based on fundamentally different phenomena than a conventional computer....

Im Focus: Turmoil in sluggish electrons’ existence

An international team of physicists has monitored the scattering behaviour of electrons in a non-conducting material in real-time. Their insights could be beneficial for radiotherapy.

We can refer to electrons in non-conducting materials as ‘sluggish’. Typically, they remain fixed in a location, deep inside an atomic composite. It is hence...

Im Focus: Wafer-thin Magnetic Materials Developed for Future Quantum Technologies

Two-dimensional magnetic structures are regarded as a promising material for new types of data storage, since the magnetic properties of individual molecular building blocks can be investigated and modified. For the first time, researchers have now produced a wafer-thin ferrimagnet, in which molecules with different magnetic centers arrange themselves on a gold surface to form a checkerboard pattern. Scientists at the Swiss Nanoscience Institute at the University of Basel and the Paul Scherrer Institute published their findings in the journal Nature Communications.

Ferrimagnets are composed of two centers which are magnetized at different strengths and point in opposing directions. Two-dimensional, quasi-flat ferrimagnets...

Im Focus: World's thinnest hologram paves path to new 3-D world

Nano-hologram paves way for integration of 3-D holography into everyday electronics

An Australian-Chinese research team has created the world's thinnest hologram, paving the way towards the integration of 3D holography into everyday...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Marine Conservation: IASS Contributes to UN Ocean Conference in New York on 5-9 June

24.05.2017 | Event News

AWK Aachen Machine Tool Colloquium 2017: Internet of Production for Agile Enterprises

23.05.2017 | Event News

Dortmund MST Conference presents Individualized Healthcare Solutions with micro and nanotechnology

22.05.2017 | Event News

 
Latest News

How herpesviruses win the footrace against the immune system

26.05.2017 | Life Sciences

Water forms 'spine of hydration' around DNA, group finds

26.05.2017 | Life Sciences

First Juno science results supported by University of Leicester's Jupiter 'forecast'

26.05.2017 | Physics and Astronomy

VideoLinks
B2B-VideoLinks
More VideoLinks >>>