laser

Radar Scans Beamed To Earth Via Laser Can See Ships In Almost Real-Time

Radar Scans Beamed To Earth Via Laser Can See Ships In Almost Real-Time

This grainy black-and-white image may not look like much, but it’s a record-breaker. A radar scan acquired by satellite and beamed back to Earth by laser, it allowed the European Space Agency (ESA) to identify ships off the coast of Brazil in less than 18 minutes — without any satellite…