Sense and Avoid for Drones Advances

Sense and Avoid for Drones Advances

Although still in testing phase, U.K.-based 2Excel says its system already does a better job than humans of detecting imminent drone collisions, a must-have capability for civil UAS acceptance.

Ice-Free Winter Stirs up Lake Erie

Ice-Free Winter Stirs up Lake Erie

After a nearly ice-free winter, along with more rain than snow, Lake Erie was filled with colorful swirls of suspended sediment and algae on the first day of spring 2012.

GeoEye-2 on Schedule

GeoEye-2 on Schedule

Despite jitters surrounding Department of Defense budget cuts, GeoEye says it fully expects to receive a $111 million government payment for its next satellite by June.

Earth Hour Set for March 31

Earth Hour Set for March 31

For the first time, Earth Hour will extend to the International Space Station, where ESA astronaut and WWF ambassador André Kuipers will observe the planet as the lights switch off March 31.

Guiding Drones with Hand Signals

Guiding Drones with Hand Signals

Just as crews use standard hand gestures to guide planes onto aircraft carrier decks, researchers at MIT are working on a system that would enable drones to react to the same types of gestures.