[sigSEGV]

To isolate the telescope from infrared interference from the Earth and the Sun, the observatory will be launched on an expendable rocket on a three-month journey that will take it to an area 940,000 miles from Earth called L2 for Lagrange Point 2.

I thought lots of dust and meteors collect at the Lagrange Points?

[ConservativeLawyer]

I thought lots of dust and meteors collect at the Lagrange Points?

Yeah, but the've got a lot of nice girls....

[r9etb]

I thought lots of dust and meteors collect at the Lagrange Points?

L2 is an unstable point, meaning that if you perturb the orbit of something there, the object will drift away from that point. Thus, nothing will collect there.

Stuff does congregate at L4 and L5, which are stable points.

With precise targeting it is possible to place an object "in orbit" about L2, which is basically what will be happening here.

FYI, here are the locations of the Earth-sun LaGrange points:

The basic geometry is the same for any two-mass system.

[RightWhale]

lots of dust and meteors collect at the Lagrange Points?

Yes, at L4 and L5, which are stable. L1, L2, and L3 are also zero points, but unstable. Things placed there can be kept there with minimal effort, but without such effort, they will drift away, first slowly and then faster and faster.