[/caption] Supernova explosions and the jets of a monstrous black hole are scattering one galaxy’s star-making gas, driving a dramatic transformation from spiral galactic youth to elderly elliptical, according to a new study of a recently merged galaxy. Cool gas, the fuel from which new stars form, is essential to the youth and vigor of … Continue reading Supernova Explosions, Black Hole Jets Might Cause Galaxies to ‘Age’ Faster