Early morning on Sunday, Sept. 24, the OSIRIS-REx spacecraft's sample capsule will come face-to-face with Earth's atmosphere for the first time since the mission's 2016 launch. On board are an estimated 8.8 ounces, or 250 ...
Space Exploration
Sep 11, 2023
0
2
The provenance of oxygen (O2) has been linked to the early Earth's atmospheric and biological evolution. A permanent rise to appreciable concentrations of O2 in the atmosphere, known as the "Great Oxidation Event (GOE)," ...
Earth Sciences
Aug 30, 2023
0
1
New research led by Macquarie University earth scientist Dr. Chunfei Chen sheds new light on geological processes from up to three billion years ago and marks a significant shift in the scientific community's understanding ...
Earth Sciences
Aug 10, 2023
0
126
Important ocean currents that redistribute heat, cold and precipitation between the tropics and the northernmost parts of the Atlantic region will shut down around the year 2060 if current greenhouse gas emissions persist. ...
Earth Sciences
Jul 25, 2023
0
293
Billions of years ago, in the giant disk of dust, gas, and rocky material that orbited our young sun, larger and larger bodies coalesced to eventually give rise to the planets, moons, and asteroids we see today.
Planetary Sciences
Jul 5, 2023
0
3332
Scientists have taken a journey back in time to unlock the mysteries of Earth's early history, using tiny mineral crystals called zircons to study plate tectonics billions of years ago. The research sheds light on the conditions ...
Astrobiology
Jun 14, 2023
1
345
Precursors of the molecules needed for the origin of life may have been generated by chemical reactions promoted by iron-rich particles from meteors or volcanic eruptions on Earth approximately 4.4 billion years ago, according ...
Astrobiology
May 25, 2023
0
180
Lightning's role in making nitrogen available for life on Earth may have been relatively short-lived, according to a new study led by researchers at the University of St Andrews Centre for Exoplanet Science.
Astrobiology
May 23, 2023
0
237
From its humble origin(s), life has infected the entire planet with endless beautiful forms. The genesis of life is the oldest biological event, so old that no clear evidence was left behind other than the existence of life ...
Evolution
May 19, 2023
5
131
Researchers at the University of California San Diego have identified the conditions for cell metabolism to emerge on the early Earth, shedding new light on the origins of life itself, along with the fundamental nature of ...
Cell & Microbiology
May 19, 2023
0
56
