Tag: Astro and Planetary Science
AI crater navigation maintains accuracy for lunar mapping
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What the study found The study found that STELLA, described as the first end-to-end crater-based navigation (CBN) pipeline for long-duration lunar mapping, can maintain metre-level position accuracy and sub-degree attitude accuracy on average in a lunar mapping setting. Why the authors say this matters The authors say this bridges a gap between CBN studies for…
Mars clay-bearing rocks yielded more than 20 organic molecules
What the study found The study found more than 20 organic molecules in clay-bearing sandstone from the Knockfarrill Hill member of Glen Torridon in Gale crater on Mars. The authors report that these molecules were detected in situ by the Sample Analysis at Mars (SAM) instrument suite on the Curiosity rover after a tetramethylammonium hydroxide…
DM Tau disk shows non-thermal line broadening
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in AstrophysicsBayesian analysis of molecular line observations confirms nonthermal broadening of 0.4 sound speeds in the DM Tau protoplanetary disk, providing evidence for turbulence.
Tomographic line analysis identifies possible embedded planets in disks
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in AstrophysicsTomographic analysis of molecular line observations enables detection of embedded planets in protoplanetary disks, revealing multiple planet candidates in HD 135344B and MWC 758.
Large protoplanetary disks show widespread non-Keplerian gas motions
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in AstrophysicsTwo-dimensional kinematic mapping of 15 protoplanetary disks reveals ubiquitous non-Keplerian deviations including spiral structures, with systematic differences between disk classifications.
