The Best in Science News and Amazing Breakthroughs
, but over time, Mars has come to the humans. Chunks of Martian rock ejected from their homeworld by processes such as violent impacts have wended their way through the Solar System to end up – smack! – crashing into Earth.
It is possible the measures of age are largely wrong. Different dating techniques have returned different results, which means scientists aren't fully confident in estimates of when these rocks formed on Mars. There are around 360 or so meteorite samples found on Earth that have been identified as having a Martian origin. SomeBased on how heavily cratered Mars' surface is, scientists have estimated that surface to be pretty old. If the surface was younger, refreshed by volcanic activity, many of the craters would be erased by volcanic flows. So any rocks that get ejected from the Martian surface should also be old.
Explanations for this surprisingly young possibility ranged from a single point of origin for all the younger shergottite, to the idea that the impact event could have heated and smushed the rock to such a degree that its age was sort of reset. But these theories didn't stack up to the evidence – the rocks themselves., which is based on the decay of radioactive potassium into argon.
Malaysia Latest News, Malaysia Headlines
Similar News:You can also read news stories similar to this one that we have collected from other news sources.
At least 37 dead as earthquake rocks northwestern NepalLancaster City Police opens its new agility course to help attract potential recruits during the Fall 2023 application cycle.
Read more »
At least 37 dead as earthquake rocks northwestern NepalDanger level increases as distracted deer go looking for love.
Read more »
Footage shows rocks being thrown from I-83 overpass, subjects identifiedUPDATE | Pennsylvania State Police have identified the two individuals as juveniles.PSP says the children's parents are cooperating with ongoing investigations.
Read more »
Football Friday Game of the Week: Surging First Coast rocks Jackson in finaleCoach Marty Lee had a simple checklist for his First Coast football team in Friday night’s regular-season finale.
Read more »
Action Bronson Rocks New Balance's TCS NYC Marathon Kick-Off PartyThe Queens rapper delivered a polished, personable set and waxed poetic about the artistic influences of nature on Friday night (Nov. 3).
Read more »