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NASA says an "interrupted flow" of helium to the rocket system could require a rollback to the Vehicle Assembly Building. If it happens, NASA says the launch to the moon would be delayed until April.
Pin trading has become a hallmark of the Olympics in recent decades — and not just for athletes. An official trading center in Milan was a hotspot for longtime collectors and curious newcomers alike.
The Pentagon and the Energy Department have airlifted a small nuclear reactor from California to Utah, demonstrating what they say is potential for the U.S. to quickly deploy nuclear power for military and civilian use.
The 5th U.S. Circuit Court of Appeals has cleared the way for a Louisiana law requiring displays of the Ten Commandments in public classrooms to take effect.