NEW YORK A General Accounting Office report has ripped the Army and its aviation procurement plans, charging that the program to develop and field the Comanche reconnaissance/attack helicopter is ill-structured to meet its cost, development and risk-reduction goals.

PARIS Aspate of new projects, including one revealed by DaimlerChrysler Aerospace and Pacific Center Group of Hong Kong last week, reflect renewed signs of vigor in the broadband satellite sector, despite investor skittishness caused by problems with mobile satellite systems.

LONDON A U.S. offer to codevelop next-generation air-to-air missiles with the U.K. has raised the political stakes in the battle to arm the Eurofighter, as well as highlighting the sharply contrasting paths to close the technology gap between the U.S. and Europe.

Los Anaeles A second NASA spacecraft will enter orbit around Mars this week to prepare for a nearly two-year study of Martian weather and serve as a communications relay link for another science probe scheduled to land on the planet in about two months, according to space agency plans.