时间:2025-07-01 06:14:22 来源:网络整理编辑:綜合
NASA's Curiosity rover spotted a strange rock on Mars, so of course, it shot it with a laser.The int
NASA's Curiosity rover spotted a strange rock on Mars, so of course, it shot it with a laser.
The intrepid, car-sized robot found an egg-shaped, golf ball-sized shiny rock that looked unlike any other rocks around it on Oct. 27.
NASA Scientists controlling the rover suspected that the odd rock is an iron meteorite that found its way to the Martian surface.
SEE ALSO:History's most spectacular Mars mission failsSo to confirm their suspicions, the researchers had Curiosity fire its laser at the meteorite.
The laser instrument (called ChemCam) has a specific scientific purpose. The instrument can decipher the chemical makeup of target rocks by gathering data on the types of light the rocks emit when hit with the laser beam.
According to Curiosity's chemical analysis, the rock discovered last week is made of nickel and iron. In addition, Curiosity also found an iron-nickel-phosphide mineral that is relatively common in these kinds of meteorites, but rare in other rocks, according to NASA.
These metal meteorites are also thought to be leftovers from the cores of asteroids floating around out in the solar system.
"Iron meteorites provide records of many different asteroids that broke up, with fragments of their cores ending up on Earth and on Mars," Curiosity team member Horton Newsom said in a statement.
"Mars may have sampled a different population of asteroids than Earth has."
This isn't the first meteorite a NASA rover on Mars has spotted.
NASA's Opportunity rover -- which is still roaming the surface of Mars -- found another iron-nickel meteorite on the planet's surface in 2009. That meteorite, known as the Block Island meteorite, is 2-feet-long, but Opportunity also found another, smaller space rock on the red planet in 2004.
Scientists aren't sure when Curiosity's meteorite (named Egg Rock) fell to the Martian surface, but the rover's laser may help them figure it out.
NASA will use the data collected by the ChemCam to figure out if the chemical composition in the interior of the meteorite is different from its exterior, possibly giving them clues as to how long the rock has been on eroding on the planet's surface.
The meteorite was found on lower Mount Sharp, the part of the Gale Crater that Curiosity is currently exploring. Scientists hope to use the rover's remaining lifespan to learn more about the past environment on Mars millions of years ago, giving them a deeper understanding of if and when the planet was habitable for microbial life.
The rover has been investigating the surface of Mars since its landing in 2012.
Man stumbles upon his phone background in real life2025-07-01 06:08
Netflix renews 'Bloodline' for third season2025-07-01 06:00
'Evolve' goes free2025-07-01 05:37
9 key predictions for what'll happen in 'Game of Thrones' Season 72025-07-01 05:30
Australian football makes history with first LGBT Pride Game2025-07-01 05:26
Alcatel Idol 4S is a respectable phone with a VR headset for only $4002025-07-01 04:47
Singapore's K+ is a celebration of fine local design2025-07-01 04:35
Singapore's K+ is a celebration of fine local design2025-07-01 04:04
J.K. Rowling makes 'Harry Potter' joke about Olympics event2025-07-01 04:02
6 tech gadgets that will improve your daily life2025-07-01 03:56
Old lady swatting at a cat ends up in Photoshop battle2025-07-01 06:00
Super Typhoon Nepartak is an example of terrifying meteorological perfection2025-07-01 05:36
#CarefreeBlackKids2k16 offers comfort in the midst of tragedy2025-07-01 05:22
New 'Game of Thrones' jewelry line gets us a little closer to being Khaleesi2025-07-01 05:10
Olympian celebrates by ordering an intimidating amount of McDonald's2025-07-01 04:44
Typhoon Nepartak slams Taiwan, threatens China with more flooding2025-07-01 04:37
This adorable 62025-07-01 04:30
Theatre is therapy for Syrian women evoking ancient tale of loss and exile2025-07-01 04:18
Here's George Takei chilling in zero gravity for the 'Star Trek' anniversary2025-07-01 04:13
Learn how to negotiate your salary in our next #BizChats2025-07-01 03:43