Sitting at the border of Rwanda, the lava lake is fed by the intense heat of the magma from below and the simmering smoke above.

Developers say space-based solar will be cost-competitive with utility-scale PV. A new documentary showcases a Caltech team’s ...

Kathy Kasic, a scientist filmmaker and professor at Sacramento State, will host a free screening and panel discussion for her new documentary, “The Memory of Darkness, Light, and Ice,” at 6 p.m.

EXCLUSIVE: In the documentary Earth to Michael, making its world premiere at the Telluride Film Festival this weekend, a cute little boy wearing an Endeavour Space Shuttle sweatshirt is interviewed by ...