Skinny 'Scrapers
Incredibly slender towers are rising around the globe into the skylines of major cities, especially New York City. Often targeted at the wealthy who are able to pay astronomical price for spectacular views,...

Floating on Air
The National Aeronautics and Space Administration has designed a concept for how Venus—which has a surface that is hot enough to melt lead—can be safely explored by astronauts....

NewsBriefs: Astronomers Expect to Find Earth's Doppelgnger

Air Show
Hundreds of aircraft and thousands of aeronautical and astronautical artifacts never before viewed by the public have finally found a home at the National Air and Space Museum's...

Astronauts Help Scientists Unlock Liquefaction Mysteries

On the Wild Side
Designers of today's roller coasters are constantly looking for new ways to exhilarate riders, from higher drops to tighter turns to launch mechanisms that exert more force...

Acquisition of Subsurface Comet Samples

Optimization of Large Scientific Structures

A Space Station Simulation: EXEMSI '92 A Study on Confinement and Isolation of a Mixed Crew of Four during 60 Days
Manned spaceflight is entering a new era. The next period will be characterized by long duration stays in space and heterogenous crews. EXEMSI '92 was an attempt to study the human-related...

A Study of Communication Signal Leakage Through the Earth's Ionosphere Using Ray-Tracing Techniques

Inter-stellar Propulsion: The Need for Speed
Interstellar travel is certainly one of mankind's next step to reach for the stars. Four ideas for interstellar propulsion are discussed in this paper: the Orion Project, Deep Space Ramjets,...

Space Stations Past, Present, and Future
The paper discusses the evolution, present state and future of space stations. Man's interest in the stars led to many inventions and the ultimate launching of the Russian satellite Sputnik,...

The Effect of Zero Gravity on Bones
Zero-gravity has created many problems for astronauts and researchers in space. Calcium depletion is cited as a major health problem. There are many different theories as to why zero-gravity...

Dust Levitation on the Moon
The NASA sponsored Lunar Base Working Group at the Institute for Astrophysics, University of New Mexico and the Department of Astronomy, New Mexico State University has been investigating...

Science Operations and Engineering Impacts to Lunar Outpost Design
Recent work by scientists and engineers at the Johnson Space Center ha led to a better understanding of the requirements and interfaces needed at an initial lunar outpost to enable scientific...

Thermal Regeneration of Spent Lithium Hydroxide
Exploration of planetary surfaces will require portable life-support systems to provide a continuous supply of breathable air. These systems will need to be regenerable in order to support...

A Space Suit for Productive and Safe Extravehicular Activity (EVA)
An innovative space suit called the Command/Control Pressure Suit (CCPS) is described in terms of productivity and safety. Conceived as a cockpit for Extravehicular Activity (EVA), the...

Very Low Frequency Radio Astronomy from Lunar Orbit
This paper discusses the use of very low frequency aperture synthesis as a probe of astrophysical phenomena. Specifically, the science achievable with the Lunar Observer Radio Astronomy...

An Inflatable Antenna for Space-Based Low-Frequency Radio Astronomy
Antennas for a low-frequency orbiting radio telescope must have minimal problems in deployment, a directional beam, and a wide-angle scanning capability. Inflatable antennas with deposited...

Low Frequency Radio Astronomy from Earth or Lunar Orbit
Acquiring data at low frequencies is complicated by the fact that the ionosphere strongly disturbs the data, especially for high-resolution ground-based telescopes. The most viable observational...

 

 

 

 

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