Alkaline lava has a melting temperature in excess of 2,000 degrees Fahrenheit. The fluidity and extreme temperature of Nyiragongo's lava make for a particularly deadly combination during eruptions.

Abby Tang: This is lava. And this is also lava ... and gradually bring the rocks up to temperature. More from Science ...

Video footage shows a geologist scooping molten lava into a bucket of water before it is taken away for testing. The lava has a thin crust on it that's caused by air cooling, so the geologist has ...

Kilauea volcano began erupting and shooting lava into the air once again Tuesday on the Big Island of Hawaii. The latest release of molten rock began 10:16 a.m. with lava flowing on to the floor ...