NASA's Advanced Composition Explorer (ACE) was launched on August 25, 1997. Eleven of the articles in this volume review scientific progress and outline questions that ACE will address in solar, space-plasma, and cosmic-ray physics.

NASA's Advanced Composition Explorer (ACE) was launched on August 25, 1997, carrying six high-resolution spectrometers that measure the abundances of the elements, isotopes, and ionic charge states of energetic nuclei in space. Eleven of the articles in this volume review scientific progress and outline questions that ACE will address in solar, space-plasma, and cosmic-ray physics. Other articles describe the ACE spacecraft, the real-time solar-wind system, and the instruments used to measure energetic particle composition. Data from these instruments is being used to measure and compare the composition of the solar corona, the nearby interstellar medium, and cosmic-ray sources in the Galaxy, and to study particle acceleration processes in a variety of environments. ACE also includes three instruments that monitor solar wind and energetic particle activity near the inner Langrangian point, 1.5 million kilometres sunward of Earth, and provide continuous, real-time data to NOAA for use in forecasting space weather.

The Advanced Composition Explorer
E.C. Stone, et al.
Challenges for the Advanced Composition Explorer
J.A. Simpson.
On the Slow Solar Wind
L.A. Fisk, et al. WIND Observations of
Suprathermal Electrons in the Interplanetary Medium
R.P. Lin.
Particle Acceleration in Impulsive Solar Flares
J.A. Miller.
Interstellar Matter and the Boundary Conditions of the Heliosphere

P.C. Frisch. Interstellar and Inner Source Pickup Ions Observed
with SWICS on Ulysses
G. Gloeckler, J. Geiss. Insights
into Cosmic-Ray Acceleration from the Study of Anomalous Cosmic Rays

J.R. Jokipii. A Cosmic-Ray Composition Controlled by Volatility
and A/Q Ratio. SNR Shock Acceleraton of Gas and Dust
J.-P.
Meyer, et al. Cosmic Rays from Supernova Remnants: A Brief
Description of the Shock Acceleration of Gas and Dust
D.C.
Ellison, et al. Cosmic Ray Clocks
V.S. Ptuskin. What are
the Limits for ACE Galactic Cosmic Ray Isotope Studies? W.R.
Webber. ACE Spacecraft
M.C. Chiu, et al. The Cosmic Ray
Isotope Spectrometer for the Advanced Composition Explorer
E.C.
Stone, et al. The Solar Isotope Spectrometer for the Advanced
Composition Explorer
E.C. Stone, et al. The Ultra Low
Energy Isotope Spectrometer (ULEIS) for the ACE Spacecraft
G.M.
Mason, et al. The Solar Energetic Particle Ionic Charge Analyzer
(SEPICA) and the Data Processing Unit (S3DPU) for SWICS, SWIMS and
SEPICA
E. Mobius, et al. Investigation of the Composition
and Interstellar Matter Using Solar Wind and Pickup Ion Measurements
with SWICS and SWIMS on the ACE Spacecraft
G. Gloeckler, et
al. Electron, Proton, and Alpha Monitor on the Advanced Composition
Explorer Spacecraft
R.E. Gold, et al. Solar Wind Electron
Proton Alpha Monitor (SWEPAM) for the Advanced Composition Explorer

D.J. McComas, et al. The ACE Magnetic Fields Experiment
C.W.
Smith, et al. The NOAA Real-Time Solar-Wind (RTSW) System
Using ACE DATA
R. Zwickl, et al. The ACE Science Center

T.L. Garrard, et al.