Ginga Tetsudou 999: Diamond Ring no Kanata e

July 22, 2009. Galaxy Express 999 made a brief stop at Kagoshima on the day of total solar eclipse. Tetsuro gives a pass for the 999 to a boy named Kakeru dreaming of becoming an astronaut, saying "It's up to you whether you can use this pass or not".
Now it's 2035, another total solar eclipse is expected in Japan, 26 years since the last one. What became of Kakeru...?
(Source: AniDB)