Sentences with phrase «size of the impact crater»
Clarification, 1 May, 2015: The size of the impact crater has been clarified since this article was first published.
https://www.newscientist.com/ Not exact matches
In these maps, each area represents the final estimated crater size and location of a collision from roughly that time, with redder spots showing older impacts and bluer spots younger.
«But the scales of lightning strikes are small and not likely to be confused for kilometer - size or larger impact cratering events.»
In this activity you'll explore how a meteorite's size is related to the size of the crater it makes on impact.
The solution was to compare the amount of confirmed craters of different sizes, calculate the expected frequency of the impacts on the basis of the known probabilities, and combine this information to infer the rates of erosion.
The kind of asteroid needed to form the Martian dichotomy would fall in between that size and those of the rocks that formed other large craters, such as the South Pole — Aitken impact basin on the moon and the Hellas Basin in Mars's southern hemisphere, both more than 1,30 miles (2,000 kilometers) wide.
The size and shape of the crater and the amount of material excavated depends on factors such as the velocity and mass of the impacting body and the geology of the surface.
Scientists record the size and number of impact craters — and how eroded they are — to determine the ages and histories of different planetary surfaces.
Mark Boslough says a comet of the size required for the impacts in these papers would have drilled through the ice, leaving a visible crater, and being so recent, might be still steaming today!