时间:2025-05-09 15:39:11 来源:网络整理编辑:探索
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.
More than half of women in advertising have faced sexual harassment, report says2025-05-09 15:31
Leonardo DiCaprio visited a Scottish cafe and nobody could cope2025-05-09 15:27
Jennifer Hudson, Ariana Grande to end 'Hairspray Live' show with special duet2025-05-09 15:25
The 'Game of Thrones' wine that would make Tyrion proud2025-05-09 15:10
U.S. government issues warning on McDonald's recalled wearable devices2025-05-09 15:09
Ninjas in Pyjamas beat SK Gaming to win 'CS:GO' champinoship2025-05-09 14:58
Now we know what caused Europe's Mars lander to crash2025-05-09 14:47
How the Trump transition is being run like a Miss Universe pageant2025-05-09 14:23
'Rocket League' Championship Series Season 2 offers $250,000 prize pool2025-05-09 13:47
Joe Biden plotting against Trump is the meme America needs2025-05-09 13:17
WhatsApp announces plans to share user data with Facebook2025-05-09 15:32
How to make spammy calendar notifications go away2025-05-09 14:27
IBM Research is developing a smartphone skin cancer detection method2025-05-09 14:27
What will Trump's presidency mean for technology?2025-05-09 14:22
Uber's $100M settlement over drivers as contractors may not be enough2025-05-09 14:07
A sexy Kenny G meme war is what the internet does best2025-05-09 13:44
Private prison stocks soar after Donald Trump wins presidency2025-05-09 13:44
'The Grand Tour' will stream worldwide as Amazon Prime Video expands2025-05-09 13:33
Honda's all2025-05-09 13:22
The 4 ways to see 'Billy Lynn's,' and where to catch all 120 frames per second2025-05-09 13:12