All posts by LL

The Moon Belongs to No One, but What About Its Artifacts?

In 1969, the third man to walk on the moon, astronaut Charles “Pete” Conrad Jr., also became the first lunar archaeologist. As part of the Apollo 12 crew, he examined an earlier robotic lander, Surveyor 3, and retrieved its TV camera, aluminum tubing and other hardware, giving NASA scientists back on Earth the evidence they needed to study how human-made materials fared in the lunar environment.

This week’s planned robotic landing by the Chinese National Space Agency, the first controlled landing since the 1976 Luna 24 mission, signals a renewal of sophisticated lunar exploration. This time around, more countries will be involved, as will commercial entities. Private organizations are in hot pursuit of the Google Lunar X Prize, which offers cash rewards for achieving technical milestones, one of which is landing near the Apollo sites. A recent bill introduced in the House, called the Apollo Lunar Landing Legacy Act, proposes a novel form of protection. Unfortunately, it appears to interfere with existing space law. Continue reading The Moon Belongs to No One, but What About Its Artifacts?

Volvo to Test Self-Driving Cars in Traffic

Volvo and a consortium of Swedish research institutions will test self-driving cars in street traffic in and around Gothenburg starting in 2017, they announced yesterday. The project begins next year with customer research and hardware development. It will culminate in a fleet of 100 cars that will alternate between driving themselves and allowing their human occupants to drive, depending on where they are.

Read the rest of this blog post on IEEE Spectrum’s Tech Talk blog: [html] [pdf]

The Sound of Sliding

December-2013-coverWhen a landslide tore through a remote Alaskan valley in July, no one was there to bear witness. But hours later, geoscientist Colin Stark of the Lamont-Doherty Earth Observatory spotted the event in the pattern of seismic waves passing through the Earth’s crust. Within days, using data from earthquake sensors and satellite images, he and colleague Göran Ekström were able to estimate, from their lab in New York, the landslide’s size, and even determine its path.

Continue reading The Sound of Sliding

Satellites to Monitor UN Forest Protection Goals

VTT.deforestation.homepageClimate change negotiators agreed Sunday to monitor deforestation and to pay developing countries for keeping carbon trapped in forests. To measure just how much forest those countries are conserving, the United Nations Collaborative Program on Reducing Emissions from Deforestation and Forest Degradation in Developing Countries (REDD+, to its friends) will rely on a complex system of satellite measurements and field checks. The agreement is a victory for advocates in the research and conservation communities. Yet they face a lot of work implementing the program. Continue reading Satellites to Monitor UN Forest Protection Goals