Former Senator John H. Glenn, Jr., the first US astronaut to orbit Earth (1962), returns to space in the space shuttle Discovery to test the effects of microgravity on the elderly. He is 76, the oldest person to enter space.
Navy Adm. Samuel J. Paparo Jr. assumed leadership of the U.S. Indo-Pacific Command, succeeding Navy Adm. John Aquilino at a change of command ceremony, urging action amid China's “increasing intrusive and expansionist claims,” on May 3