volcanoes

We probed Santorini’s volcano with sound to learn what’s going on beneath the surface

We probed Santorini’s volcano with sound to learn what’s going on beneath the surface

The island of Santorini in the Mediterranean has attracted people for millennia. Today, it feels magical to watch the sun set from cliffs over the deep bay, surrounded by cobalt blue churches and whitewashed houses. This mystical place attracts about 2 million tourists per year, making it one of the top destinations in Greece.

Each volcano has unique warning signs that eruption is imminent

Each volcano has unique warning signs that eruption is imminent

Mount Agung in Bali has been thrusting ash thousands of feet into the sky for almost two weeks. Lava is burbling at the volcano’s peak. Indonesian authorities have ordered evacuations around Agung, while tourists are stranded at the closed airport. The volcano’s flanks are bulging from magma trying to push its way out, and earthquake frequency has been increasing. 

There’s a Radical Plan to Artificially Cool the Planet by Mimicking Volcanic Eruptions

There’s a Radical Plan to Artificially Cool the Planet by Mimicking Volcanic Eruptions

Some have suggested solar geoengineering — the injection of aerosols into the atmosphere to reflect sunlight away from the planet — as a way to counter global warming. However, new research suggests the radical process could do as much harm as good.

The world’s five deadliest volcanoes … and why they’re so dangerous

The world’s five deadliest volcanoes … and why they’re so dangerous

An eruption of Mount Etna recently caught out some BBC journalists who were filming there. The footage was extraordinary and highlighted the hazards volcanoes pose to humans and society.

Comets or volcanoes? Scientists are changing their minds about how the Earth’s water got here

Comets or volcanoes? Scientists are changing their minds about how the Earth’s water got here

The Earth has been the blue planet for as many as 3.8 billion years. Ancient sedimentary rock deposits and lava that cooled into characteristic pillow shapes provide irrefutable evidence that liquid water has existed at the Earth’s surface for at least this long. But given how many barren rocks there are in the galaxy, Earth’s abundant oceans raise the question of where all that water came from.