Table of Contents

In This Issue

Discoveries from IRAS
The Infrared Astronomical Satellite ran out of coolant in November, after almost a year of spectacular scientific discoveries. This article summarizes the achievements of this joint project of three countries and nearly 500 scientists, engineers, and technicians.

The Question of Utopia
An interview with Brian Barry, the Edie and Lew Wasserman Professor of Philosophy at Caltech, by journalist Mark Davidson.

A Look at Technology and the Future of the Caltech Libraries
by Glenn L. Brudvig
The library is a link between a global range of information and a community of users, but increasingly that link will be an electronic one.


Oral History
Jesse Greenstein, the Lee A. DuBridge Professor of Astrophysics, Emeritus, recalls some of the history of astronomy at Caltech and his own organizational activities at the Institute since 1948.

Research in Progress
Improving on Nature — Missing Mass

Books —
by, about, or of interest to Caltech people.

Random Walk
Real Time — In Memoriam — For the Record — For Old Times Sake.