NASA’s Perseverance Rover spent three years exploring the floor of Jezero Crater, located just north of the Martian equator.
We determined the metal/silicate partition coefficients of hydrogen and carbon, DH and DC, simultaneously under typical conditions of Earth’s core formation.
Gullies are common on steep slopes of many impact craters on Mars. When gullies were first observed, there was a lot of excitement surrounding them because similar features form on […]
In 2024, NASA’s Mars rover Perseverance collected an unusual rock sample. The rock, named Sapphire Canyon, features white, leopardlike spots with black borders within a red mudstone and might hold […]
![Comparison of elemental abundances from the literature and this work (filled circles) for the same stars. The y-axis shows the difference in abundance, [X/H]literature – [X/H]this work, plotted against the Tc of each element on the x-axis. Potassium (K) is excluded as it was not reported in the literature. The open squares and downward triangles show a direct comparison of abundances measured from HARPS and MIKE spectra using the same spectral lines and analysis methods applied in this study. The differences reflect both instrumental systematics and manual measurement variability between HARPS and MIKE. -- astro-ph.EP](https://i0.wp.com/astrobiology.com/wp-content/uploads/2025/08/Planets-Around-Solar-TwinsAnalogs.png?resize=1200%2C720&ssl=1)
Context. Previous studies have suggested that the Sun is relatively depleted in refractory elements compared to other solar twins or analogs, potentially as a result of planet formation. However, such […]
Gossans are formed through the oxidation of sulfide ore deposits by fluids, such as meteoric water or hydrothermal solutions, leading to locally acidic conditions.
Convective flow in Earth’s iron-rich liquid core drives self-sustained dynamo action, generating Earth’s magnetic field, which is strongest among all terrestrial planets of the solar system.
The agency’s largest interplanetary probe tested its radar during a Mars flyby. The results include a detailed image and bode well for the mission at Jupiter’s moon Europa.
This study is led by Dr. Jinran Qiao (School of Earth and Space Sciences, Peking University), Prof. Shuguang Song (School of Earth and Space Sciences, Peking University), associate professor Jie […]
Laminae are millimeter-scale features in rocks created by physiochemical processes that can be influenced by the presence and activities of communities of organisms that occur as biofilms and microbial mats.
