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Harrison Schmitt - 4 Eugene Cernan - 4 Jennika Greer - 4 Heck - 3 Bidong Zhang - 3 Zhang - 3 ” - 2 Schmitt - 2
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Search resuls for: "Jennika Greer"


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☆ Apollo 17 astronauts collected rocks that reveal the moon’s true age
  + stars: | 2023-10-28 | by ( Ashley Strickland | ) edition.cnn.com   time to read: +6 min
The moon’s gravitational pull is also the force behind ocean tides and partly why our planet has a 24-hour day. Geologist and astronaut Harrison Schmitt used an adjustable sampling scoop to retrieve lunar samples during the Apollo 17 mission in 1972. Zircon crystals formed as the moon cooled 4.46 billion years ago, and a new analysis traced them in the Apollo 17 samples. NASAAn ancient landscape has been discovered beneath the East Antarctic ice sheet, thanks to ice-penetrating radar. Understanding the hidden, well-preserved landscape could help scientists predict the evolution of the ice sheet and how it may fare as temperatures warm in the climate crisis.
Persons: Harrison Schmitt, Eugene Cernan, ”, Jennika Greer, Nick Gray, James Webb, Stewart Jamieson, Ashley Strickland, Katie Hunt Organizations: CNN, NASA, Apollo, University of Glasgow, JBA Consulting, Environment Agency Engineers, Environment, Durham University, CNN Space, Science Locations: Europe, Africa, Asia, Australia, England's Isle of Wight, Isle of Wight, Orkney Islands, Denman, East Antarctica, Belgium, North Wales, Iraq, Syria
☆ Apollo 17 samples reveal that the moon is 40 million years older than previously thought
  + stars: | 2023-10-23 | by ( Ashley Strickland | ) edition.cnn.com   time to read: +6 min
CNN —Lunar dust collected by Apollo 17 astronauts in the 1970s has revealed that the moon is 40 million years older than previously believed. After landing on the moon on December 11, 1972, NASA astronauts Eugene Cernan and Harrison Schmitt collected rocks and dust from the lunar surface. A new analysis of that sample detected zircon crystals and dated them to 4.46 billion years old. “When the surface was molten like that, zircon crystals couldn’t form and survive. A lunar zircon grain is shown under a microscope.
Persons: Eugene Cernan, Harrison Schmitt, ”, Philipp Heck, Robert A, Heck, Bidong Zhang, Zhang, Audrey Bouvier, Jennika Greer, Greer, they’re, ” Heck, “, ” Greer, Dieter Isheim Organizations: CNN, Apollo, NASA, Polar Studies, Field, Research Center, University of Chicago, University of California, Bayreuth University, University of Glasgow, Northwestern University, Field Museum, Northwestern University Center, Atom Locations: Chicago, Los Angeles, Germany, Evanston , Illinois
☆ Rock Collected by Apollo 17 Astronaut in 1972 Reveals Moon's Age
  + stars: | 2023-10-23 | by ( Oct. | At A.M. | ) www.usnews.com   time to read: +4 min
A half century later, crystals of the mineral zircon inside a coarse-grained igneous rock fragment collected by Schmitt are giving scientists a deeper understanding about the moon's formation and the precise age of Earth's celestial partner. This blasted magma - molten rock - into space, forming a debris disk that orbited Earth and coalesced into the moon. "I love the fact that this study was done on a sample that was collected and brought to Earth 51 years ago. "Interestingly, all the oldest minerals found on Earth, Mars and the moon are zircon crystals. The new study used atom probe tomography to determine there were no complications involving the lead atoms, confirming the age of the crystals.
Persons: Will Dunham WASHINGTON, Harrison Schmitt, Eugene Cernan, Schmitt, wouldn't, cosmochemist Philipp Heck, Bidong Zhang, Heck, Zhang, Jennika Greer, Will Dunham, Lisa Shumaker Organizations: Field Museum, University of Chicago, UCLA, Space Center, University of Glasgow, NASA Locations: Chicago, Houston, Scotland
☆ Rock collected by Apollo 17 astronaut in 1972 reveals moon's age
  + stars: | 2023-10-23 | by ( Will Dunham | ) www.reuters.com   time to read: +4 min
[1/4] The crescent Earth rises above the lunar horizon in this undated NASA handout photograph taken from the Apollo 17 spacecraft in lunar orbit during the final lunar landing mission in the Apollo program in 1972. A half century later, crystals of the mineral zircon inside a coarse-grained igneous rock fragment collected by Schmitt are giving scientists a deeper understanding about the moon's formation and the precise age of Earth's celestial partner. This blasted magma - molten rock - into space, forming a debris disk that orbited Earth and coalesced into the moon. "I love the fact that this study was done on a sample that was collected and brought to Earth 51 years ago. "Interestingly, all the oldest minerals found on Earth, Mars and the moon are zircon crystals.
Persons: Harrison Schmitt, Eugene Cernan, Schmitt, wouldn't, cosmochemist Philipp Heck, Bidong Zhang, Heck, Zhang, Jennika Greer, Will Dunham, Lisa Shumaker Organizations: NASA, REUTERS, Rights, Field Museum, University of Chicago, UCLA, Space Center, University of Glasgow, Thomson Locations: Chicago, Houston, Scotland
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