Related topics: nasa

Four most polluted national park sites are in California

A couple years ago, as part of the Sierra Club's Outdoors for All campaign, Roberto Morales took a group of low-income Los Angeles area residents north to Sequoia National Park to help with a forest restoration project.

NASA picks Lockheed Martin to develop nuclear rocket

NASA and the US military said Wednesday they had selected defense contractor Lockheed Martin to develop a nuclear powered rocket, with a view to using the technology for missions to Mars.

All concrete, no trees: Athens ill-prepared for heatwaves

A densely-populated concrete jungle lacking in green space, Athens has become one of Europe's hottest capitals and despite its vulnerability to extreme temperatures, has failed to make environmental innovations, experts warn.

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