Fitxategi:FrettedTerrain_05-19-16-Context-R2.jpg
From Wikipedia, the free encyclopedia
Bereizmen handikoa ((2.400 × 2.454 pixel, fitxategiaren tamaina: 1,88 MB, MIME mota: image/jpeg))
Fitxategi hau Wikimedia Commonsekoa da. Hango deskribapen orriko informazioa behean duzu. |
DeskribapenaFrettedTerrain 05-19-16-Context-R2.jpg |
English: In looking over images of Pluto’s informally named Venera Terra region, New Horizons scientists have spotted an expanse of terrain they describe as “fretted.” As shown in the enhanced-color image at top, this terrain consists of bright plains divided into polygon-shaped blocks by a network of dark, connected valleys typically reaching a few miles (3 to 4 kilometers) wide. Numerous impact craters of up to 15 miles (25 kilometers) in diameter also dot the area, implying the surface formed early in Pluto’s history.
New Horizons scientists haven’t seen this type of terrain anywhere else on Pluto; in fact, it’s rare terrain across the solar system – the only other well-known example of such being Noctis Labyrinthus on Mars. The distinct interconnected valley network was likely formed by extensional fracturing of Pluto’s surface. The valleys separating the blocks may then have been widened by movement of nitrogen ice glaciers, or flowing liquids, or possibly by ice sublimation at the block margins. Compositional data from New Horizons’ Ralph/Multispectral Visible Imaging Camera (MVIC), shown in the bottom image, indicate that the blocks are rich in methane ice (shown as false-color purple); methane is susceptible to sublimation at Pluto surface conditions. The resolution of these MVIC images is approximately 2,230 feet (680 meters) per pixel. They were obtained at a range of approximately 21,100 miles (33,900 kilometers) from Pluto, about 45 minutes before New Horizons’ closest approach on July 14, 2015. |
||||||
Data | |||||||
Jatorria | http://pluto.jhuapl.edu/Multimedia/Science-Photos/pics/FrettedTerrain_05-19-16-Context-R2.jpg | ||||||
Egilea | NASA/Johns Hopkins University Applied Physics Laboratory/Southwest Research Institute | ||||||
Lizentzia (Fitxategi hau berrerabiltzen) |
|
Fitxategi honetan agertzen diren itemak
honako hau irudikatzen du
20 maiatza 2016
data size ingelesa
1.973.675 Byte
2.454 pixel
2.400 pixel
media type ingelesa
image/jpeg
checksum ingelesa
618f81617e0f4ee91d9cc6caef74c7bad02bcb98
Fitxategiaren historia
Data/orduan klik egin fitxategiak orduan zuen itxura ikusteko.
Data/Ordua | Iruditxoa | Neurriak | Erabiltzailea | Iruzkina | |
---|---|---|---|---|---|
oraingoa | 03:16, 28 maiatza 2016 | 2.400 × 2.454 (1,88 MB) | PlanetUser | Transferred from http://pluto.jhuapl.edu/Multimedia/Science-Photos/pics/FrettedTerrain_05-19-16-Context-R2.jpg |
Irudira dakarten loturak
Ez dago fitxategi hau darabilen orririk.