López-Alegría holds the all time American record for number of EVAs (10) and total EVA duration (67 hours and 40 minutes). The previous record holder, Jerry L. Ross had a total of 9 EVAs with a duration of 58 hours and 18 minutes. López-Alegría is the second most experienced spacewalker overall, behind Russia's Anatoly Solovyev. On April 2, 2007, López-Alegría set the record for the longest space mission of any American astronaut. When he landed on April 21, his time in space on a single mission was 215 days. (The longest space mission on record is that of Valeriy Polyakov, who spent 437 days aboard the Russian space station Mir in 1994 and 1995.)