The JWST will operate near the Earth–Sun L2 (Lagrange point), approximately beyond Earth's orbit. By way of comparison, Hubble orbits above Earth's surface, and the Moon is roughly from Earth. This distance made post-launch repair or upgrade of the JWST hardware virtually impossible with the spaceships available during the telescope design and fabrication stage. SpaceX says its new Starship has the ability to deliver satellites and space telescopes even larger than the James Webb and is designed to reach Mars orbit. Objects near this Lagrange point can orbit the Sun in synchrony with the Earth, allowing the telescope to remain at a roughly constant distance and use a single sunshield to block heat and light from the Sun and Earth. This arrangement will keep the temperature of the spacecraft below , necessary for infrared observations.