Untitled Slide

EDWIN HUBBLE

• THE FIRST PERSON TO IDENTIFY GALAXIES

THE GALACTIC HALO IS MADE OF

• Cluster of stars
• Scattered stars

THE CLOSEST NEIGHBORING GALAXIES ARE CALLED THE

• Magellanic Clouds

THE PROJECT TO DETECT EXTRATERRESTRIAL INTELLIGENCE IS CALLED

• SETI
• "Search for extraterrestrial intelligence"