The National Center for Disaster Prevention warned Mexicans on Saturday to stay away from the volcano after activity picked up in the crater and it registered 183 emissions of gas and ash over 24 hours.

Was it the planes or the volcano, the grounded planes or the volcano?

Living on a Volcano

pshhh! There's another volcano going.

The volcano erupted violently in 1963,

Volcano spews ash on Mexico City

The volcano has become active again.

The Sleeping Volcano of Global Finance

Mt. Aso is an active volcano.

I want to see a volcano.

And they fly into the erupting volcano.

The volcano has erupted twice this year.

Here is how big of a crater was left.

This is European space agency Mars Express, image of a crater on Mars and in the middle of the crater we have liquid water, we have ice.

We sat, as it were, on a volcano.

So essentially, we had our first carbon neutral volcano.

Mars has the largest impact crater in the solar system, Hellas Basin.

The volcano known as Don Goyo has been active since 1994.

Mars has the largest volcano in the solar system, Olympus Mons.

Some of the bluest water in the world is found in Crater Lake.

And there's a volcano behind, which has glaciers at the very top.

On the left hand side there is a large volcano called Axial Seamount.

So, this is called Victoria Crater, which is about a few football fields in size.

Ash spewing from the Popocatepetl volcano has reached the southern neighborhoods of Mexico's capital.

So, specifically what we are doing now is that Rover is going down in that crater.

Thanks to changing wind direction, volcanic ash from the Agung volcano began to spread southward,

We know it was that big because of the impact it had and the crater it left.

There is a median point between tiny rock and gigantic rock, and in fact, if any of you have ever been to near Winslow, Arizona, there is a crater in the desert there that is so iconic that it is actually called Meteor Crater.

In Meteor Crater it was made of metal, and metal is much tougher, so it made it to the ground.

(d) The seat of the explosion (the resulting crater) was flooded with water in the days following the explosion after the local authorities Police had failed to prevent water from being turned on and released into the crater through the fractured pipes at the scene, thereby damaging or even eliminating vital evidence

And I remember being stuck in New York, this time because of the volcano, which was obviously much less harmful.

Its population was evacuated to the United Kingdom when the volcano last erupted in 1961, but they returned in 1963.

The Lebanese security forces have recovered small parts of a Mitsubishi truck from the crater, and from the surrounding area of the explosion.

Often we can get clarity or the answer to a simple question very quickly, like this one, the recent Icelandic volcano.

In a desert plain in Tanzania, in the shadow of the volcano Ol Donyo Lengai, there's a dune made of volcanic ash.

You know, I found that volcano on Google Images, not realizing how much it makes me look like the cover of Dianetics.

Lake Manicouagan, a ring shaped lake in Quebec, Canada, is all that remains of a crater from a massive impact over 200 million years ago.

We've determined from the earthquake activity that you're seeing here that the top of that volcano is erupting, so we deploy the troops.

Then there was the volcano that interrupted the travel plans of almost all of you and many of your friends, including President Obama.

And the most amazing thing that came out of that mission was a strong hydrogen signature at Shackleton crater on the south pole of the moon.

For example, the lidar system compiled a complete map of lunar elevations, discovering a 12 kilometer deep impact crater at the lunar south pole in the process.

This, we later found out, is, in fact, a crater, but there are very few craters on the surface of Titan, meaning it's a very young surface.

The purpose was to make a crater to excavate the material and see what was underneath the surface of this comet, which we learned quite a bit about.

The Mission recovered a piece of metal from the crater resembling metal used in truck parts and bearing evidence that supports the theory of a surface overground explosion.

We look at the data and we see Yep, the volcano emitted 150,000 tons the grounded planes would have emitted 345,000 if they were in the sky.