The acoustic and magnetic solar cycle
The acoustic telescope
The Active Magnetospheric Particle Tracer Explorers (AMPTE) program
The active phase of substorms according to ground and satellite data
The active solar corona
The additional possibilities afforded by the method of partial reflections using high-power transmitters
The Advanced Technology Solar Spectroscopic Imager (ATSSI) - Solar EUV/Soft X-ray Imaging and Spectroscopy using Transition-Edge Sensors
The AEC-NASA Nuclear Rocket Program
The aeronomy of odd nitrogen in the thermosphere. II - Twilight emissions
The AEROS retarding potential analyzer
The AFGL infrared celestial survey program
The AFP-675 Far Ultraviolet Cameras experiment - Observations of the far-UV space environment
The air content of Larsen Ice Shelf
The airglow continuum at high latitudes - An estimate of the NO concentration
The Alfvén resonance and surface waves in dusty space and astrophysical plasmas
The Alfvén-Assisted Precipitation Model: Toward an Explanation of the Field-Aligned Electron Bursts Observed by the GEODESIC Sounding Rocket
The amplification of cosmological density perturbations in the recombination area; upper limits for galaxy masses.
The amplitude of auroral backscatter. I - Model estimates of the dependence on electron density
The Analysis at 5 MU M of Hot Spots from Galileo/NIMS Spectra: Results for Cloud Opacity, Water and Ammonia
The analysis of data from rotation modulation collimators