The light regions are younger, revealing a complex pattern of parallel and intersecting ridges and grooves in addition to unusually bright impact craters typically surrounded by systems of rays.
Spacecraft images show its surface to have many bright impact craters up to 50 km (30 miles) in diameter, but few large ones, along with trenches and a deep fault line extending roughly 1,600 km (1,000 miles).
Gauld made a bright impact for United in the early months of last season, drawing scouts from all over Europe to Tannadice.
Their studies, to appear on 15 December in Geophysical Research Letters, imply that the comets would spark frequent bright flashes above Earth, create bright impact craters on the moon, and throw off the balance of the noble gases argon, krypton, and xenon in our atmosphere.
However, bright impact deposits around some fresh craters are slightly bluer in color.
Many large craters are surrounded by bright impact ejecta (rays) consisting of relatively fresh ice.
Some craters (for instance, Ursula and Jessica) are surrounded by bright impact ejecta (rays) consisting of relatively fresh ice.
The surface of Umbriel is slightly blue in color, while fresh bright impact deposits (in Wunda crater, for instance) are even bluer.
The light plains include bright impact craters like Burr and Lofn, as well as the effaced remnants of old large craters called palimpsests, the central parts of multi-ring structures, and isolated patches in the cratered plains.
Finally, we will discuss the use of technology in the formal classroom environment, mainly to stimulate a much-needed discussion about the bright-not-so-bright impacts of technology in the teaching and learning process.
Their frequent peregrinations from north to south, cold and dark to sunny and bright, apparently impacted deeply on their psyches.
