时间:2026-10-06 00:31:01 来源:网络整理编辑:焦點
Want to take a hike on Mercury?On Friday -- about one year after the Messenger spacecraft ended its
Want to take a hike on Mercury?
On Friday -- about one year after the Messenger spacecraft ended its mission by crashing into Mercury -- scientists released the first complete global elevation map produced by the long-lived spacecraft.
The new map, which looks somewhat like a map a hiker would use, shows the highest and lowest points on the planet, with its highest point coming in at 4.48 kilometers above the average elevation on the planet, the Johns Hopkins University Applied Physics Laboratory (APL), said in a statement.
SEE ALSO:NASA Mercury mission comes to a 'dramatic end'The planet's lowest point is 5.38 km below the average in the Rachmaninoff basin.
In all, it took more than 100,000 images collected by Messenger to create the map, the APL said.
In total, however, Messenger beamed back about 300,000 images of Mercury in its time circling the planet closest to the sun.
“The wealth of these data ... has already enabled and will continue to enable exciting scientific discoveries about Mercury for decades to come,” Susan Ensor, a software engineer at the APL said in the statement.
Scientists also produced a map of a part of Mercury near the north pole as never seen before.
Messenger "had previously discovered that past volcanic activity buried this portion of the planet beneath extensive lavas, more than a mile deep in some areas and covering a vast area equivalent to approximately 60% of the continental United States,” said APL’s Nancy Chabo.
Messenger (which is of course an acronym short for MErcury Surface, Space ENvironment, GEochemistry and Ranging) launched toward Mercury in 2004 and began orbiting the planet in 2011.
Scientists using Messenger data already created the first full map of Mercury, which showed never-before-seen features on the small planet like volcanic vents around the Caloris basin, the world's magnetic field and a giant iron core.
Have something to add to this story? Share it in the comments.
Whyd voice2026-10-06 00:14
How to create a family calendar on Google2026-10-06 00:12
Apple Store goes down: Purple iPhone 12 and AirTag are coming2026-10-06 00:11
The 16 best tweets of the week, including stimmies, the plums meme, and illegal seafood2026-10-06 00:05
How Hyperloop One went off the rails2026-10-05 23:52
These are the best photo2026-10-05 23:39
'F9' reaches new heights of absurdity: Movie review2026-10-05 23:23
Constantly stressed at work? It might actually be changing your personality.2026-10-05 23:11
Researchers create temporary tattoos you can use to control your devices2026-10-05 22:47
Mesmerizing image of black hole reveals magnetic field2026-10-05 21:58
Dog elected for third term as mayor of Minnesota town2026-10-05 23:46
Apple will invest $3.6 billion in Kia Motors to build an Apple Car, report says2026-10-05 23:40
Ford will reveal F2026-10-05 23:38
'The Power' is a claustrophobic horror movie with a devastating message2026-10-05 23:27
New Zealand designer's photo series celebrates the elegance of aging2026-10-05 23:04
Twitter launches larger image previews on mobile, ruins the surprise2026-10-05 22:59
EPA climate webpage rebooted by Biden administration after being axed2026-10-05 22:57
Oscars 2021: The full winners list2026-10-05 22:51
Teacher absolutely nails it with new homework policy2026-10-05 22:18
Colonial Pipeline turns fuel taps back on amidst ransomware mess2026-10-05 22:16