A peak ring crater is a type of complex crater, which is different from a multi-ringed basin or central-peak crater. A central peak is not seen; instead...

second largest confirmed impact structure on Earth, and the only one whose peak ring is intact and directly accessible for scientific research. The crater...

groups: central-peak craters and peak-ring craters. Peak-ring craters have diameters that are larger in than central-peak craters and have a ring of raised...

A multi-ringed basin (also a multi-ring impact basin) is not a simple bowl-shaped crater, or a peak ring crater, but one containing multiple concentric...

the asteroid. A 2016 drilling project into the Chicxulub peak ring confirmed that the peak ring comprised granite ejected within minutes from deep in the...

bombs dropped on Hiroshima and Nagasaki. A 2016 drilling project into the peak ring of the crater strongly supported the hypothesis, and confirmed various...

south of the outer ring of present-day hills, which suggests the ring of hills are not the rim of the original crater but a peak ring within a much larger...

directly above the peak ring. These strongly support the hypothesis that the impactor was large enough to create a 120-mile peak ring, eject molten granite...

Ring Ring is the debut studio album by the Swedish group ABBA, initially credited as Björn & Benny, Agnetha & Frida. It was released in Scandinavia on...

are 0.14 km and 0.012 km. The rings have triangular radial brightness profiles. The peak brightness of the μ (mu) ring lies almost exactly on the orbit...