Two new space telescopes are en route to their post over 1.5 million km from Earth. Launched in mid-May, the ESA's Herschel and Planck observatories are traveling to a point known as L2, a gravitationally stable point on the side of the Earth directly opposite the sun's position. The two craft will independently orbit the L2 point, which should have less thermal and radiation interference than other locations. We'll talk about the two observatories and what they hope to see.
Produced by Christopher Intagliata, Associate Senior Producer