10-20 percent larger
From the impact of fast moving objects with a surface. The kinetic energy of the impactor excavates a crater with an inverted, raised rim and forms an ejector plume leaving a crater and, if the impactor is sufficiently large or fast, a central mountain peak.
An impact crater is formed when a large meteorite or asteroid collides with the surface of a planet at high velocity. The impact releases a tremendous amount of energy, causing the ground to be excavated and displaced, leaving behind a depression. The size and depth of the crater depend on the size of the impacting object and the characteristics of the planet's surface.
A crater is formed when a meteoroid, asteroid, or comet collides with the Earth's surface at a high velocity. The impact creates a depression in the ground, often surrounded by an elevated rim, due to the explosive force generated upon impact.
A large meteoric impact such as Meteor Crater in Arizona, displaces the sedimentary rock that has existed before impact. On the rim of Meteor Crater are displaced boulders from lower depositional areas. Small fragments of the meteor are found around the entire area of the impact, and they may be detected with something as simple as a magnet. Features that indicate a volcanic event, like volcanic cinders or quantities of extrusive igneous rock , would also be missing from the impact site.
When a rock mass smashes into a planet or moon, it can create a crater. The impact releases large amounts of energy that can cause significant damage and reshape the surface of the celestial body. The size and appearance of the crater depend on various factors such as the size and speed of the impacting rock.
From the impact of fast moving objects with a surface. The kinetic energy of the impactor excavates a crater with an inverted, raised rim and forms an ejector plume leaving a crater and, if the impactor is sufficiently large or fast, a central mountain peak.
crater
The crater was as big as her upper esophageal sphincter.
The impact crater was as large as Wales.The soldiers hid in the crater until the mortars stopped.The Mars Rover tumbles and falls into a deep crater.
The crater was formed by a meteor impact, leaving a large bowl-shaped depression in the ground.
At 5:52 UTC on 4 July 2005, the impactor of the Deep Impact probe successfully impacted the comet's nucleus, excavating debris from the interior of the nucleus. Photographs of the impact showed the comet to be more dusty and less icy than expected. The impact generated a large, bright dust cloud that obscured the hoped-for view of the impact crater. Scientists are still analyzing the observations
There are a number of factors that determine the size and shape of a crater. The two most significant are the mass of the impactor, and the speed. Other influential factors would include the composition of the object (solid rock or more aggregate, like pebbles? Ice?) the shape of the object, and the composition of the impact site. If it is on dry land, it will be more likely to leave a visible crater, while a water or marshy impact site would be quickly erased. If a water impact, the depth of the water and the topography of the surrounding seas would be vastly important. A strike in a deep ocean basin might be relatively mild, while a water strike in the South China Sea or Gulf of Mexico, with the constricted water flow, might result in catastrophic tsunamis inundating the surrounding areas.
The Bailly crater on the Moon was most likely formed by the impact of a large asteroid or comet colliding with the lunar surface. The impact would have created a crater with a central peak and terraced walls, features commonly seen in larger impact craters. Bailly crater is one of the largest craters on the Moon and is estimated to have formed billions of years ago.
A large depression in earth cause by impact of an asteroid or other object from space.
The Copernicus crater on the moon was formed by a large impact event, likely from an asteroid or comet colliding with the lunar surface. The impact created a circular depression that we see as the crater today.
A caldera is a large depression formed at the summit of a volcano, left behind by the excavation of magma. A crater is formed by an explosion or impact.
An impact crater is formed when a large meteorite or asteroid collides with the surface of a planet at high velocity. The impact releases a tremendous amount of energy, causing the ground to be excavated and displaced, leaving behind a depression. The size and depth of the crater depend on the size of the impacting object and the characteristics of the planet's surface.