Athanasios (Thanos) Klidaras (@PCharon2000) header
Athanasios (Thanos) Klidaras (@PCharon2000) profile picture

Graduate student at Purdue EAPS, studying Mars with orbiters and rovers! Opinions are my own. He/him 🏳️‍🌈🇬🇧🇬🇷. https://teapaw.org/t.co/Jzff4fgZlL

London, UK
Joined December 2018
Photo by Athanasios (Thanos) Klidaras (@PCharon2000)Photo by Athanasios (Thanos) Klidaras (@PCharon2000)Photo by Athanasios (Thanos) Klidaras (@PCharon2000)Photo by Athanasios (Thanos) Klidaras (@PCharon2000)Photo by Athanasios (Thanos) Klidaras (@PCharon2000)Photo by Athanasios (Thanos) Klidaras (@PCharon2000)Photo by Athanasios (Thanos) Klidaras (@PCharon2000)Photo by Athanasios (Thanos) Klidaras (@PCharon2000)Photo by Athanasios (Thanos) Klidaras (@PCharon2000)Photo by Athanasios (Thanos) Klidaras (@PCharon2000)
Athanasios (Thanos) Klidaras retweeted
The European Space Agency’s Hera mission for planetary defence has acquired its first close-up of the Didymos binary asteroid system! 🛰️🪨🪨 esa.int/articles/about-us/di…
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Athanasios (Thanos) Klidaras retweeted
A journey to the depths of ancient Mars? Perseverance is exploring a field of light-toned rocks, which are an unusual sight on Mars, a planet dominated by dark-colored basaltic stones. This piqued the team’s interest. What are they? How did they get here?  ½
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Athanasios (Thanos) Klidaras retweeted
We found some pretty awesome looking rocks with Curiosity last week. More here: science.nasa.gov/blog/curios…
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After a hiatus, the Perseverance rover blog is back! Regular updates will now be resuming. My post this week covers Perseverance’s exploration of "Lac de Charmes" where the rover is investigating some truly ancient martian terrain. science.nasa.gov/blog/mars-h…
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Athanasios (Thanos) Klidaras retweeted
We’re in orbit! And just made European history: This is the first time a privately developed rocket reached orbit from continental Europe; and a testament to the dedication, expertise, and teamwork of everyone involved.
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Athanasios (Thanos) Klidaras retweeted
MISSION SUCCESS | ZhuQue-3 Y2 Reusable Launch Vehicle Achieved Full Success in Orbital Insertion and First-Stage Recovery On August 19, 2026, at 07:35 (UTC+8), the ZhuQue-3 (ZQ-3) Y2 reusable launch vehicle lifted off from the Dongfeng Commercial Space Innovation Pilot Zone. Approximately 137 seconds after lift-off, the first and second stages separated. The second stage continued its flight and successfully delivered the Honghu 03 satellite, independently developed by Hongqing Technology, into its designated orbit. At approximately 07:41, the first stage performed a successful soft touchdown at the LandSpace Landing Site#1 in Minqin County, Gansu Province, following the planned trajectory — marking the full success of the flight test mission.
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Athanasios (Thanos) Klidaras retweeted
Excited to have our latest article highlighted by @jgrplanets in this post! LIBS can create sub-mm elemental maps in a vacuum and we tested it on a lunar meteorite! This rapid, quantitative data could be a game-changer for lunar landers/rovers. Check out our paper to see why!
In a new study, scientists develop a detailed calibration that allows Laser-Induced Breakdown Spectroscopy (LIBS) measurements to be used to quantify the composition of lunar materials. 🔗Check it out: doi.org/10.1029/2026JE009769 #AGUPubs #Meteorite #PlanetaryScience #Moon
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Athanasios (Thanos) Klidaras retweeted
Only one chance in this lifetime… Like watching sunset at the beach from the most foreign seat in the cosmos, I couldn’t resist a cell phone video of Earthset. You can hear the shutter on the Nikon as @Astro_Christina is hammering away on 3-shot brackets and capturing those exceptional Earthset photos through the 400mm lens. @AstroVicGlover was in window 3 watching with @Astro_Jeremy next to him. I could barely see the Moon through the docking hatch window but the iPhone was the perfect size to catch the view…this is uncropped, uncut with 8x zoom which is quite comparable to the view of the human eye. Enjoy.
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Athanasios (Thanos) Klidaras retweeted
☄️ #3I/ATLAS comet update! On 3 October, our ExoMars Trace Gas Orbiter (TGO) turned its eyes towards interstellar comet 3I/ATLAS as it passed close to Mars. Together with Mars Express, ExoMars TGO had the closest view of the comet of all of our spacecraft. It looked towards the interstellar interloper from just 30 million km away during its closest approach to the Red Planet. Read more: esa.int/Science_Exploration/…
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Athanasios (Thanos) Klidaras retweeted
After a year of scientific scrutiny, a rock sample collected by the Perseverance rover has been confirmed to contain a potential biosignature. The sample is the best candidate so far to provide evidence of ancient microbial life on Mars. go.nasa.gov/4n35lVM
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Athanasios (Thanos) Klidaras retweeted
Remember the “leopard spots” rock Perseverance sampled last year? After a year of scientific scrutiny, the rock remains the mission's best candidate for containing signs of ancient microbial life processes. More on this peer-reviewed finding: go.nasa.gov/4nmZuKm
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Athanasios (Thanos) Klidaras retweeted
New Horizons is so far away that the nearest stars have shifted markedly from where we see them on Earth. With NH-based positions for two stars alone we can figure out where the spacecraft is. This technique would be used on interstellar voyages. arxiv.org/abs/2506.21666
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Wishing upon a... moon? That bright "star" is actually Mars' moon Deimos. In the hours before dawn, I snapped this long-exposure image with my left Navcam and caught Deimos as well as two stars from the constellation Leo in the sky. It's definitely a mood, as they say.
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Athanasios (Thanos) Klidaras retweeted
Wow! I’ve never seen anything like this 😱 This CCTV footage captures the powerful M7.7 earthquake that struck Myanmar in March. You can clearly see the dramatic shift in the ground. Absolutely surreal.
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Athanasios (Thanos) Klidaras retweeted
NASA’s #DragonflyMission, which will send a rotorcraft to explore Saturn's moon Titan, has passed its Critical Design Review, meaning its mission plans have been approved and the team can now turn its attention to the construction of the spacecraft itself go.nasa.gov/3S6HXIS
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Hello from the rim of Jezero Crater 👋 I’ve hit my fastest science-collection tempo yet, sampling three rocks since January and analyzing dozens more. One might even be 3.9 billion years old! So, what’s next? More exploration at Witch Hazel Hill. go.nasa.gov/3FYmcbp
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Athanasios (Thanos) Klidaras retweeted
First views of Earth's polar regions from Dragon
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Athanasios (Thanos) Klidaras retweeted
#PPOD: Shocking Spherules This image from @NASAPersevere, a fusion-processed SuperCam Remote Micro-Imager (RMI) mosaic, shows part of the “St. Pauls Bay” target acquired from the lower Witch Hazel Hill area of the Jezero crater rim. The image reveals hundreds of strange, spherical-shaped objects comprising the rock. Perseverance acquired this image on March 11, 2025. Credit: NASA/JPL-Caltech/LANL/CNES/IRAP #planetaryscience
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Athanasios (Thanos) Klidaras retweeted
BREAKING 🚨: NASA's Perseverance rover has found a bizarre rock with hundreds of little dark gray spheres Scientists are still investigating but believe it could've been formed by groundwater or volcanic activity
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