00:00One star is racing dangerously close to a monster that even light cannot escape.
00:06At the heart of our galaxy hides Sagittarius A,
00:10a black hole more than 4 million times heavier than our sun.
00:17Scientists call this star S301.
00:20It completes its journey in 8.7 years.
00:24And in 2031, its next close encounter could reveal how this cosmic monster spins.
00:30But what secrets are still hiding in the darkness?
