Moon’s rough ‘wrinkles’ can reveal its age
Washington: Like wrinkles on the skin, the roughness of craters and other features on the Moon’s surface can reveal its age, according to a new study.
To come to the conclusion, Meg Rosenburg and her colleagues at the California Institute of Technology, Pasadena, Calif. put together the first comprehensive set of maps revealing the slopes and roughness of the Moon’s surface.
These maps are based on detailed data collected by the Lunar Orbiter Laser Altimeter (LOLA) on NASA’s Lunar Reconnaissance Orbiter.
“The key is to look at the roughness at both long and short scales,” said Rosenburg, the first author of the study.
“Old and young craters have different roughness properties -- they are rougher on some scales and smoother on others,” he said.
That’s because the older craters have been pummeled for eons by meteorites that pit and mar the site of the original impact, changing the original shape of the crater.
“Because this softening of the terrain hasn’t happened at the new impact sites, the youngest craters immediately stand out,” said NASA Goddard’s Gregory Neumann, a co-investigator on LOLA.
“It is remarkable that the Moon exhibits a great range of topographic character: on the extremes, surfaces roughened by the accumulation of craters over billions of years can be near regions smoothed and resurfaced by more recent mare volcanism,” said Oded Aharonson, Rosenburg’s advisor at the California Institute of Technology.
By looking at where and how the roughness changes, the researchers can get important clues about the processes that shaped the Moon.
The study was published in the Journal of Geophysical Research earlier this year.
More from India
More from World
More from Sports
More from Entertaiment
- Watch - Huge fire breaks out at petrol pump in Kota, Rajasthan
- NSG now 'nine times' stronger; receives technological strength from 12 countries!
- RJD strongman Shahabuddin brought to Delhi
- UP elections in third phase; voting on 69 seats of 12 districts
- Panel discussion over why SP government is backing Gayatri Prajapati
- 'BJP is winning by absolute majority in Uttar Pradesh Assembly elections'
- 7th Pay Commission: Allowances committee raises HRA to 30%?
- J&K: 26 soldiers martyred, 22 militants killed as Army steps up security in Valley
- Virat Kohli thanks sprint legend Usain Bolt for congratulating on 'record' Puma deal
- Virat Kohli becomes first Indian sportsperson to sign Rs 100-crore endorsement deal