Nearly 1,000 Puerto Ricans protested yesterday against NASA plans to launch research rockets filled with chemicals at an abandoned U.S. Army base next week. NASA plans to launch at least one rocket February 12 from the Tortuguero base in the northern coast town of Vega Baja. A total of 11 rockets will be launched over a period of one month. The rockets will disperse the chemical aluminum trimethyl into the atmosphere before crashing back to sea about 60 miles north of Puerto Rico, this according to the newspaper Primera Hora.