Hubble space
Length of mission, more than 25 years
Designed to be serviced by astronauts
Mass of the mirror:828 kg
The primary mirror is a singe glass mirror, 2.4 in diameter
Placed in orbit around Earth by astronauts aboard the space shuttle Discovery
Positioned about 1.5 million km from Earth at the L2 point
James Webb
Length of mission, 5 to 10 years (limited by fuel)
Located too far away from Earth to be serviced by astronauts
mass of the mirror: 276 kg
The primary mirror has 18 segments made of berrylium and is about 6.5 m in diameter
will be launched on an
Ariane 5 rocket and will take a month to reach the L2 orbital point
Orbits Earth roughly every 95 minutes at a height of about 547 km
Both use solar panels to collect sunlight as source of power
Both use a mirror to collect and focus light
Both are located in space, above the Earth's atmoshepe
comparing the Hubble space telescope and the James Webb telescope
(author: Ethan Dasch)
