Nighthawk would fly to altitudes of up to 4,920 feet (1,500 meters) above the Martian average, covering distances of up to 1.86 miles per flight.

A helicopter monitored the Kilauea volcano eruption in Hawaii. Authorities from the US Geological Survey's (USGS) Hawaiian Volcano Observatory conducted an aircraft overflight to assess the ...

Using the sensor mounted on a helicopter, the research team measured emissions at Soufrière Hills Volcano on the Caribbean Island of Montserrat, revealing that the volcano emitted three times ...

A proposed Mars helicopter mission would search for signs ... thought to be a deeply eroded and glaciated giant volcano — for potential biomarkers and even suitability for future human exploration.

To help assess the situation, the coastguard is conducting flights over the area, and practising helicopter evacuations in case of a sudden eruption. The BBC's Nick Beake joined the coastguard ...