Nasa fully deploys Webb telescope

The most powerful space telescope ever built completed a tricky two-week-long deployment phase Saturday, unfolding its final golden mirror panel, as it readies to study every phase of cosmic history. Engineering teams in the James Webb Space Telescope's control room cheered as confirmation came back that its final wing was deployed and latched into place. Because the telescope was too large to fit into a rocket's nose cone in its operational configuration, it was transported folded up. Webb, the successor to Hubble, blasted off in an Ariane 5 rocket from French Guiana on December 25, and is heading to its orbital point, a million miles from Earth. Though Webb will reach its space destination, known as the second Lagrange point, in a matter of weeks, it still has around another five and a half months of setup to go.