A Grand Canyon river rafting guide who aimed to become the first American woman to row across the mid-Pacific solo has completed a record-breaking journey from California to Hawaii

Tsunami warning sirens blare in Honolulu and people are told to move to higher ground after earthquake off Russia

Hawaii officials have cited a Maui man seen on video snorkeling for allegedly harassing a humpback whale and pod of dolphins

A camera atop Hawaii’s tallest mountain has captured what looks like a spiral swirling through the night sky

Hawaii's governor has appointed several people, including some prominent Native Hawaiian activists, to a new board charged with managing Mauna Kea summit lands underneath some of the world’s most advanced astronomical observatories

The last bits of ash and greenhouse gases from Hawaii’s only remaining coal-fired power plant slipped into the environment this week when the state’s dirtiest source of electricity burned its final pieces of fuel

For over 50 years, telescopes have dominated the summit of Mauna Kea, a place sacred to Native Hawaiians and one of the best places in the world to study the night sky

Elon Musk's SpaceX is moving into the business of providing internet service to airline passengers

Formula One racing got a huge boost in interest in North America through the Netflix series “Drive to Survive.”