Mauna Loa, the world's largest active volcano, is the mighty giant of Hawaii that's still bubbling away, waiting to be explored.

a Unesco World Heritage Site that's home to two of the world's most active volcanoes - Kilauea and Mauna Loa - as well as the Chain of Craters Road, lava fields, steam vents and lush rainforest.

About two months before Mauna Loa spewed rivers of glowing orange molten ... we don’t get to watch directly what’s happening inside – we have to look for other signs," said Erik Klemetti ...

Hawaii’s Mauna Loa Observatory just captured an ominous sign about the pace of global warming. Atmospheric levels of ...

There are two active volcanoes in Hawai'i Volcanoes National Park, Mauna Loa and Kilauea, but Kilauea is the real "must-see." A 4,000-foot-tall mountain, Kilauea has been active since Jan.

The level of carbon dioxide in the atmosphere measured by a weather station at the Mauna Loa Observatory in Hawaii increased by 3.58 parts per million in 2024 – the biggest jump since records ...

Mauna Loa – or Long Mountain – is overshadowed ... led walk to learn more about the park and Hawaiian history; check inside the visitor center upon arrival to see if any ranger-led activities ...