How tiny ‘dead’ galaxies get their groove back and make stars again
Gas falling into the dwarf galaxy must fight the galaxy’s old stars before making new ones

Unlike most of its tiny peers, little Leo P glitters with freshly minted stars, seen here behind bright stars in the Milky Way and in front of distant galaxies. From left to right, this Hubble image spans just 4,800 light-years, showing how small Leo P is.
Hubble Space Telescope/NASA, ESA; K. McQuinn/Rutgers Univ.