APEX Band T2: A 1.25 - 1.39 THz Waveguide Balanced HEB Receiver

APEX: five years of operations

Aplanatic two-mirror telescopes - A systematic study. III - The Schwarzschild-Couder configuration

Apodization effects due to the size of a secondary mirror in a reflecting, on-axis telescope for detection of extra-solar planets

Apodized square aperture plus occulter concept for TPF

Apollo 11 Laser Ranging Retro-Reflector: Initial Measurements from the McDonald Observatory

Apollo Lunar Module ascent propulsion - No second chance

APOLLO: A Comprehensive Test of Gravity via Lunar Laser Ranging

Apparent Size of the Moon

Applicability Study of Composite Laminates to the Cryogenic Propellant Tanks

Application and evaluation of a GPS multi-antenna system for dam deformation monitorin

Application guide for universal source encoding for space

Application of a high-precision interferometric measuring system as phasing the segmented primary mirrors of the next generation of ground-based telescope

Application of a large space-based diffractive optical element telescope to the Terrestrial Planet-Finder mission: design and tolerance issues

Application of a NEPTUNE propulsion concept to a manned Mars excursion

Application of a SNTP-Based Propulsion/Power System to Solar System Exploration Missions

Application of adaptive filters to the problem of reducing microphony in arrays of pyroelectric infrared detectors

Application of Artificial Neural Network to the Classification of Stellar Spectra

Application of Artificial Neural Networks for the classification of the seismic transients at Soufrière Hills volcano, Montserrat

Application of Autoscala to ionograms recorded by the VIPIR ionosonde