Four types of volcanoes—shield, composite, cinder cone, and plug dome—can be found in Lassen Volcanic National Park, where they literally bubble and steam.

They shoot molten lava and toxic gases miles into the atmosphere and when the lava is too thick to run over the top, it can create what geologists like Dr. Pat Abbott call a plug dome volcano.

The park's namesake peak is the one of the largest plug dome volcanoes in the world — a type of volcano that grows in size from layers of its own lava building on top of each other over time.

Firefly Aerospace has partnered with Blue Origin's Honeybee Robotics to supply a rover for its third lunar mission in 2028 to study the Gruithuisen Domes, the Texas-based rocket maker said on Monday.

Lassen Volcanic is one of the few areas in the world where all four types of volcano can be found—plug dome, shield, cinder ...