How to watch Ceres, a dwarf planet 14 times smaller than Pluto, photobomb a spiral galaxy this weekend

Watch live online as the dwarf planet Ceres swoops in front of the 'grand design' spiral galaxy Messier 100 this weekend.

How to watch Ceres, a dwarf planet 14 times smaller than Pluto, photobomb a spiral galaxy this weekend
Watch live online as the dwarf planet Ceres swoops in front of the 'grand design' spiral galaxy Messier 100 this weekend.