Darmstadt, Germany, March 18, 2026 (GLOBE NEWSWIRE) -- Employee volunteer program brings hands-on science learning to communities worldwideMore than 600.000 students reached and nearly 200.000 employee volunteer hours Ambitious 2035 goals aim to double student reach and expand global impact Merck, a leading science and technology company, marks the 10th anniversary of SPARK™, its global employee volunteer program that connects employees with communities through hands-on science learning and local service ...