Climate change will be a hot topic at next week's G8 summit, but the prospect for any significant agreements looks low, experts say.

UNITED PRESS INTERNATIONAL

WASHINGTON, Oct. 17 (UPI) -- North Korea's mention of "more powerful" weapons in its statement admitting to a nuclear bomb program could mean the country thinks it can create a thermonuclear, or hydrogen, bomb, scientists told United Press International Thursday.

LOS ANGELES, Dec. 2 (UPI) -- The latest test of the United States' fledgling missile defense program was postponed until Sunday night because of what the Pentagon said was poor weather at Vandenberg Air Force Base.

LOS ANGELES, Dec. 1 (UPI) -- A rocket that could eventually become the first and only line of defense against a nuclear attack on the United States was to be launched sometime Saturday nigh

LOS ANGELES, Dec. 1 (UPI) --