The image highlights the lava's infrared (red) signature by combining natural-color (bands 8, 4, 3, and 2) with false-color (bands 6, 5, and 3).

Kilauea's caldera had a big lava lake in the eastern half of Halema‘uma‘u crater and a smaller lava region in the western half.

NASA in a conversation—what do you think? Rockets? Rovers? Astronauts? Martians? NASA employs the most Earth scientists.

The agency tracks global changes using 25 Earth-observing satellites and releases data as soon as technology allows.

.They watch coastline erosion, volcano eruptions, and light pollution.

"Really the name of the game for us is trying to get all these data and see how we can get a better understanding of how the planet works

said John Bolten, chief of the Hydrological Sciences Lab at NASA Goddard Space Flight Center in Maryland.

Bolten told The Conversation ahead of Earth Day how NASA shares data with the public and state agencies like the Hawaiʻi Department of Land and Natural Resources.

Our job is to get data to decision-makers and ordinary people. We're doing many important things. "You can learn from NASA data on your phone now," he remarked.