Hubble Space Telescope
-Length of mission: more than 25 years
-Mass of mirror: 1,825 lbs
-Primary mirror is a single glass mirror, 94.5 inches in diameter
-Designed to be serviced by astronauts
-Placed in orbit around Earth by astronauts aboard the space shuttle Discovery
-Orbits Earth roughly every 95 mins. at a height of about 340 mi.
James Webb Space Telescope
-Length of mission:5-10 years (fuel limited)
-Mass of mirror: 608 lbs
-Primary mirror has 18 segments made of beryllium about 21.3 ft in diameter
-Located too far from Earth to be serviced by astronauts
-Positioned about 1 million mi. from Earth at L2 point -take one month to reach L2
Located in space, above Earth's atmosphere
Both use a mirror to collect and focus light
Hubble vs. James Webb Space Telescope
(author: Kaitlyn Cote)
