A monumental discovery has revealed that an asteroid struck the East Coast of North America roughly 35 million years ago, ...

The furthest secondary craters found by the researchers indicated that some of the ejecta from the impact were launched as far as 1,150 miles (1,850 km). That's about four times the length of the ...

But Moser thinks the unusual appearance of Vredefort's impact melt could also help researchers search for older impact craters, which have been confirmed only through discovery of impact ejecta ...

The craters feature a thin outer deposit that extends many times beyond the typical range of ejecta, said Nadine Barlow, professor of physics and astronomy at Northern Arizona University.

Geologists have found evidence of impacts, such as ejecta (material flung far away from the impact), melted rocks, and high-pressure minerals from more than 3.5 billion years ago.

Ultra-high-speed movie showing two views of an impact flash, and crater and ejecta development during the first few microseconds, for a stainless steel sphere impacting an aluminum alloy plate at ...

He harkens back to Gene Shoemaker's work at Meteor Crater to appreciate the process of impact cratering, excavation and ejecta deposits. "Those markers are so evidently available and readily visible.

The tektites also offer clues about the missing crater itself. In 2007 Shyam Prasad, a scientist at India’s National Institute of Oceanography, modeled the impact event required to produce the ...

The impact crater is small, less than 10 feet (3m) in diameter, barely resolvable by the LROC NAC. The crater is small because the spacecraft — compared to most celestial impacts — was not ...

In this area, there are many impact scars but none perhaps are more intriguing than the elongated craters. One of these craters is seen in this new image, which covers an area of 83 by 33 miles ...