The US will take on a broader range of military responsibilities, including defending space and cyberspace, in spite of growing pressure on budgets, according to the latest Quadrennial Defense Rev­iew.

The United States faces an evolving list of potential adversaries in the 21st century that not only continue to seek weapons of mass destruction, but are honing the skills necessary to wage battle in cyberspace as well as outer space, a panel of national security experts said Jan. 20.

Richard Fisher finds a lot to worry about in China's recent test of exoatmospheric missile interception, arguing that the U.S. needs to take this "as a wake-up call that in the long term, China intends to challenge its strategic superiority in aerospace."

India has begun development of lasers and an exo-atmospheric kill vehicle that could be combined to produce a weapon to destroy enemy satellites in orbit, according to the director-general of India's defense research organization.

An in-depth history of the "Soviet Star Wars" program, that in 1987 attempted to launch an orbiting battlestation with an anti-satellite, sky-sweeping laser weapon, and a space-to-earth kinetic warhead system, but failed during launch due to a small programming error.

The U.S. Army is developing a nanosatellite program, dubbed "Kestrel Eye", to provide launch-on-demand surveillance satellites to support warfighters.

The Chinese foreign ministry clarified that it would never participate in any kind of arms race in the outer space, in response to remarks from Xu Qiliang, commander of the People's Liberation Army Air Force that "space warfare was inevitable".

An arms race in space is an "historical inevitability" -- according to an interview with Xu Qiliang, a senior Chinese air force commander -- marking an apparent shift in Beijing's opposition to weaponising outer space.

U.S. military officials increasingly worry that U.S. satellites are vulnerable to airborne assault, or even mere accident, in the Southern Hemisphere which has become something of a blind spot for military space tracking systems.

The United States will be able to hit any target in Russia from space by 2030, the commander of Russia's air force said on Tuesday, announcing that Moscow will develop a new air defense system to avert the threat.