Just a day after making some high-profile cuts to its network, Alaska Airlines is out with a big expansion in San Diego.

The Seattle-based carrier filed plans over the weekend to drop four high-profile routes over the next few months.

The contribution and scale of the directly linked First and Second Kamchatka Expeditions cannot be overestimated. In the 18th century, research covered Eurasia's northern coast, the entire Siberia, ...