Sébastien Viscardy
@sebastienviscardy.bsky.social
Planetary scientist | Amateur pianist
Reposted by Sébastien Viscardy
Review of methane through space and time, coauthored with @planetdr.bsky.social, is out (OA) in @annualreviews.bsky.social.
Hopefully a helpful resource for community and courses. www.annualreviews.org/content/jour...
Hopefully a helpful resource for community and courses. www.annualreviews.org/content/jour...
June 2, 2025 at 1:17 PM
Review of methane through space and time, coauthored with @planetdr.bsky.social, is out (OA) in @annualreviews.bsky.social.
Hopefully a helpful resource for community and courses. www.annualreviews.org/content/jour...
Hopefully a helpful resource for community and courses. www.annualreviews.org/content/jour...
Great news! Our paper questioning the methane detections on Mars by Curiosity has been featured as an Eos Research Spotlight:
eos.org/research-spo...
eos.org/research-spo...
Proposed Experiment Could Clarify Origin of Martian Methane - Eos
Curiosity’s detection of the gas, if atmospheric, could be an indicator of life on the Red Planet. But skeptics say further work is needed to rule out the rover itself as the source of the methane.
eos.org
May 12, 2025 at 2:37 PM
Great news! Our paper questioning the methane detections on Mars by Curiosity has been featured as an Eos Research Spotlight:
eos.org/research-spo...
eos.org/research-spo...
Reposted by Sébastien Viscardy
Embark on a thesis with us from the start of the 2025-2025 academic year to decipher the composition of comet 67P!
#PhD #astrochemistry #astrobiology
@upecofficiel.bsky.social @ipsl.bsky.social @lisa-ipsl.bsky.social
#PhD #astrochemistry #astrobiology
@upecofficiel.bsky.social @ipsl.bsky.social @lisa-ipsl.bsky.social
May 2, 2025 at 11:45 AM
Embark on a thesis with us from the start of the 2025-2025 academic year to decipher the composition of comet 67P!
#PhD #astrochemistry #astrobiology
@upecofficiel.bsky.social @ipsl.bsky.social @lisa-ipsl.bsky.social
#PhD #astrochemistry #astrobiology
@upecofficiel.bsky.social @ipsl.bsky.social @lisa-ipsl.bsky.social
This recital by Grigory Sokolov is definitely one of the best performances of Rachmaninov’s Opus 23 Preludes.
www.youtube.com/watch?v=awcs...
www.youtube.com/watch?v=awcs...
Rachmaninov - Preludes Op. 23 - Grigory Sokolov, Geneva 11.12.2021
YouTube video by marcbloch86
www.youtube.com
April 28, 2025 at 4:41 PM
This recital by Grigory Sokolov is definitely one of the best performances of Rachmaninov’s Opus 23 Preludes.
www.youtube.com/watch?v=awcs...
www.youtube.com/watch?v=awcs...
Reposted by Sébastien Viscardy
The mystery of Mars methane 🤔
Before phosphine on Venus and DMS on K2-18b, methane on Mars was the hottest biosignature around, and a major result for Curiosity.
Problem is, I've been searching for it with ExoMars for seven years and haven't seen a trace.....🧵
#planetsci 🧪🔭
doi.org/10.1029/2024...
Before phosphine on Venus and DMS on K2-18b, methane on Mars was the hottest biosignature around, and a major result for Curiosity.
Problem is, I've been searching for it with ExoMars for seven years and haven't seen a trace.....🧵
#planetsci 🧪🔭
doi.org/10.1029/2024...
Questioning the Reliability of Methane Detections on Mars by the Curiosity Rover
Methane levels in Curiosity's Tunable Laser Spectrometer foreoptics chamber are 3–4 orders of magnitude higher than in the sample cell Using a diffusion model, we propose a leakage scenario from ...
doi.org
April 26, 2025 at 6:01 PM
The mystery of Mars methane 🤔
Before phosphine on Venus and DMS on K2-18b, methane on Mars was the hottest biosignature around, and a major result for Curiosity.
Problem is, I've been searching for it with ExoMars for seven years and haven't seen a trace.....🧵
#planetsci 🧪🔭
doi.org/10.1029/2024...
Before phosphine on Venus and DMS on K2-18b, methane on Mars was the hottest biosignature around, and a major result for Curiosity.
Problem is, I've been searching for it with ExoMars for seven years and haven't seen a trace.....🧵
#planetsci 🧪🔭
doi.org/10.1029/2024...
Reposted by Sébastien Viscardy
Impressive detective work.
It’s possible that previous reports of detection of methane on Mars are contamination.
Will await results from rover after conducting the suggested tests.
agupubs.onlinelibrary.wiley.com/doi/10.1029/...
It’s possible that previous reports of detection of methane on Mars are contamination.
Will await results from rover after conducting the suggested tests.
agupubs.onlinelibrary.wiley.com/doi/10.1029/...
Questioning the Reliability of Methane Detections on Mars by the Curiosity Rover
Methane levels in Curiosity's Tunable Laser Spectrometer foreoptics chamber are 3–4 orders of magnitude higher than in the sample cell Using a diffusion model, we propose a leakage scenario from ...
agupubs.onlinelibrary.wiley.com
April 13, 2025 at 8:37 PM
Impressive detective work.
It’s possible that previous reports of detection of methane on Mars are contamination.
Will await results from rover after conducting the suggested tests.
agupubs.onlinelibrary.wiley.com/doi/10.1029/...
It’s possible that previous reports of detection of methane on Mars are contamination.
Will await results from rover after conducting the suggested tests.
agupubs.onlinelibrary.wiley.com/doi/10.1029/...