A new study of an old meteorite contradicts current thinking about how rocky planets like the Earth and Mars acquire volatile elements such as hydrogen, carbon, oxygen, nitrogen and noble gases as they form. The work is published ...
Planetary Sciences
Jun 16, 2022
1
1288
Water makes up 71% of Earth's surface, but no one knows how or when such massive quantities of water arrived on Earth.
Planetary Sciences
Mar 15, 2023
7
975
Just over 12 months ago, we were sitting at Woomera, in the Australian outback, waiting for a streak of light in the sky to testify that the Hayabusa2 spacecraft had returned from its voyage to collect a little piece of a ...
Planetary Sciences
Feb 11, 2022
0
1728
The origin of organic matter found in meteorites that formed during the birth of the Solar System 4.5 billion years ago may provide key clues to understanding the birth of life here on Earth.
Space Exploration
Aug 6, 2018
1
439
If you've ever seen a shooting star, you might have actually seen a meteor on its way to Earth. Those that land here are called meteorites and can be used to peek back in time, into the far corners of outer space or at the ...
Planetary Sciences
Mar 26, 2023
0
368
New studies of a rare type of meteorite show that material from close to the Sun reached the outer solar system even as the planet Jupiter cleared a gap in the disk of dust and gas from which the planets formed. The results, ...
Astronomy
Sep 8, 2020
0
430
(PhysOrg.com) -- For a century, scientists have assumed that the Earth has same chemical make-up as the sun. But this belief has been challenged by scientists at The Australian National University.
Earth Sciences
Mar 29, 2012
9
0
Scientists have long believed that comets and, or a type of very primitive meteorite called carbonaceous chondrites were the sources of early Earth's volatile elements—which include hydrogen, nitrogen, and carbon—and ...
Space Exploration
Jul 12, 2012
32
5
The Dishchii'bikoh meteorite fall in the White Mountain Apache reservation in central Arizona has given scientists a big clue to finding out where so-called LL chondrites call home. They report their results in the April ...
Astronomy
Apr 23, 2020
0
137
Scientists from Lawrence Livermore National Laboratory (LLNL) have found that, contrary to popular belief, the Earth is not comprised of the same material found in primitive meteorites (also known as chondrites).
Space Exploration
Sep 15, 2016
0
691
