How a new startup plans to power satellites with lasers. A new class of ultrafast AI chips also uses lasers. And startup Axiomatic AI is building better AI models for science and engineering.

Study reveals anti-depredation squads in Assam may contribute to increased elephant deaths, challenging their effectiveness in human-elephant conflict management.

Water companies are under fire for dumping more than 10,000 hours’ worth of raw sewage into England’s rivers, seas and lakes each month on days of little or no rainfall.