Thousands of earthquakes in Iceland may spell a volcanic eruption

Thousands of earthquakes in Iceland may spell...

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Did Earth’s Water Come From Space?

Choose your fighter for the origin of water on Earth! Was it always here or did it come to this planet from somewhere else in space? And, either way, what does this mean for other water worlds in our galaxy? To find out, we talk with Michael Wong, an astrobiologist and planetary ...  عرض المزيد

The trouble of zero

What better time to contemplate the conundrum that is zero than the start of a new year? Zero is a fairly new concept in human history and even more recent as a number. It wasn't until around the 7th century that zero was used as a number. That's when it showed up in the records ...  عرض المزيد

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Can the weather trigger a volcano?
Science In Action

Which came first the volcano or the rain? Volcanic eruptions are known to influence global climate systems, even leading to the cooling of the planet. However local weather conditions can also influence the timing and ferocity of volcanic eruptions. As volcanologist Jenni Barclay ...  عرض المزيد

Volcanic rumblings in Iceland
Science In Action

Increased tremors have been felt in Iceland, and concerns about an impending eruption have led to the evacuation of the town of Grindavik. Geophysicist Dr Freysteinn Sigmundsson reveals more about the events and whether this area of Iceland may be entering a new period of volcani ...  عرض المزيد

Digging Up Disaster
Overheard at National Geographic

How did an ancient Roman harbor end up in ruins? Scientists realized the culprit was a long-forgotten natural disaster that left tell-tale geological clues -- and possibly an eyewitness account in an ancient religious text. But solving this mystery led to a bigger question: what ...  عرض المزيد

Quels sont les différents types de volcans ?
Choses à Savoir SCIENCES

Il existe de nombreux volcans de par le monde, dont beaucoup sont encore très actifs. Si l'on se fonde sur les types d'éruptions qu'ils provoquent, il en existe deux grandes catégories.


On trouve d'abord des volcans effusifs. Ils se caractérisent surtout par le compo ...

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