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Peter Grindrod

@petergrindrod.bsky.social

Research Leader in Meteoritics & Planetary Science @NHM_London. Occasional cricket bat maker. he/him

3,295 Followers  |  216 Following  |  70 Posts  |  Joined: 22.08.2023  |  2.0563

Latest posts by petergrindrod.bsky.social on Bluesky

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Never won a raffle in my life, until now! Signed by Harry Brook. Just wish his century hadn’t been in vain. #ENGIND

04.08.2025 12:31 β€” πŸ‘ 3    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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New dust devil tracks at the Spirit landing site in Gusev crater, Mars.

CTX images, taken just 65 days apart at the end of 2006 / beginning of 2007.

21.05.2025 15:20 β€” πŸ‘ 26    πŸ” 7    πŸ’¬ 1    πŸ“Œ 0
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Western Postdoctoral Fellowship Program Western University, in vibrant London, Ontario, delivers an academic and student experience second to none.

To anyone looking for a #postdoc at #LPSC2025 my university has just announced a Postdoctoral Fellowship Program. The program β€œincorporates the principles of equity, diversity, and
inclusion”.

Reach out if you’re interested.

uwo.ca/research/fun...

12.03.2025 14:21 β€” πŸ‘ 16    πŸ” 10    πŸ’¬ 0    πŸ“Œ 0
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Geospatial Analyst:South Kensington

Come and join us in @nhm-london.bsky.social's Biodiversity Futures Lab! We're looking for a geospatial analyst to join the #PredictsProject team for 12 months (with possibility to extend) to help us further develop the Biodiversity Intactness Index. #job deadline 3 Mar jobs.nhm.ac.uk/internal/Job...

13.02.2025 10:57 β€” πŸ‘ 31    πŸ” 30    πŸ’¬ 0    πŸ“Œ 0

Many years ago, I got the train to Edinburgh, and spent the journey reading a Culture novel. When I got off, Iain Banks was right there on the platform as I opened the door.

He was meeting someone (else) from the train. I was too shellshocked/awkward to do anything but stare dumbfounded.

27.01.2025 12:00 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
An image of the surface of Mars, where a landslide deposit runs top to bottom. Streaks of colours (blues, cyans) stretch through the landslide.

An image of the surface of Mars, where a landslide deposit runs top to bottom. Streaks of colours (blues, cyans) stretch through the landslide.

Do other people have a favourite landslide?

If not, consider adding this one on Mars. The colour from the CaSSIS instrument is just amazing.

CREDIT: ESA/TGO/CaSSIS/Peter Grindrod

24.01.2025 14:01 β€” πŸ‘ 34    πŸ” 10    πŸ’¬ 2    πŸ“Œ 1
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This is what a dust storm on Mars looks like.

As seen by the Curiosity rover in 2018. Images taken over nearly a month, with roughly the same view.

Credits: NASA/JPL-Caltech/MSSS/Peter Grindrod

24.01.2025 12:22 β€” πŸ‘ 59    πŸ” 12    πŸ’¬ 0    πŸ“Œ 2

That would be @joemcneil.bsky.social πŸ˜€

22.01.2025 21:41 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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Mysterious Martian mounds formed by ancient water Over 15,000 mounds are scattered across Mars’ lowlands – but until recently, no one knew how they got there.

Interested in some #Mars news this Monday?

The origins of more than 15,000 mysterious mounds on the red planet have been revealed, having been carved out of the surface by water billions of years ago.

Find out what they reveal about the red planet πŸ‘‡
www.nhm.ac.uk/discover/new...

20.01.2025 11:01 β€” πŸ‘ 67    πŸ” 11    πŸ’¬ 3    πŸ“Œ 0
An ochre toned mosaic capturing a Martian landscape. A depleted area with slightly darker colors at center corresponds to an impact crater.

Credits images: NASA/JPL-Caltech/MSSS/fredk

An ochre toned mosaic capturing a Martian landscape. A depleted area with slightly darker colors at center corresponds to an impact crater. Credits images: NASA/JPL-Caltech/MSSS/fredk

A 33-images mosaic acquired two days ago by Curiosity, capturing an impact crater named β€œRustic Canyon”

Check out this post by @emmaharris.bsky.social describing the science program and operations of the rover on that day: science.nasa.gov/blog/sols-44...

#Mars Jan. 16, 2025 (Sol 4425) πŸ§ͺπŸ”­

18.01.2025 16:55 β€” πŸ‘ 55    πŸ” 14    πŸ’¬ 0    πŸ“Œ 1

Gah! Thank you, yes, you're right, that's the paper.

13.01.2025 15:58 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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Here's what plate tectonic movement looks like on Europa.

Part of the Northern Falga region, centred ~50N.

Animation, incredible work and data are all by Geoffrey Collins and co-authors (open access)
doi.org/10.1029/2022...

13.01.2025 13:50 β€” πŸ‘ 29    πŸ” 4    πŸ’¬ 1    πŸ“Œ 0

Fantastic news! And so well deserved!

Giulia is an amazing scientist and the best colleague.

10.01.2025 18:04 β€” πŸ‘ 3    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0

It's a commonly-used phrase for an image that is real 'colour', but isn't as the human eye would see it.

In this case, RGB colours correspond to near-infrared (940 nm), red (678 nm), and blue (495 nm) wavelengths.

09.01.2025 16:52 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

It's a commonly-used phrase for an image that is real 'colour', but isn't as the human eye would see it.

In this case, RGB colours correspond to near-infrared (940 nm), red (678 nm), and blue (495 nm) wavelengths.

09.01.2025 10:30 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

It's a commonly-used phrase for an image that is real 'colour', but isn't as the human eye would see it. In this case, RGB colours correspond to near-infrared, red, and blue wavelengths.

09.01.2025 10:29 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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Some parts of Mars are deliciously colourful.

Here's part of the western Ladon basin, as seen in false colour by the CaSSIS instrumnet on the TGO spacecraft.

Image no. MY35_012192_201_0, taken in January 2021.
(Credit: ESA/TGO/CASSIS/Peter Grindrod)

08.01.2025 16:32 β€” πŸ‘ 37    πŸ” 10    πŸ’¬ 2    πŸ“Œ 0
About - Planetary ResearchContentsMenuExpandLight modeDark modeAuto light/dark, in light modeAuto light/dark, in dark mode

The new diamond πŸ’Ž open access #PlanetaryScience community journal has a name! Planetary Research
And a website! Find out all about the project here
planetary-research-journal.online/about.html

07.01.2025 16:09 β€” πŸ‘ 19    πŸ” 10    πŸ’¬ 0    πŸ“Œ 1
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The disappearance of Lake PoopΓ³, Bolivia.

It was the second largest lake in the country, but is now unlikely to return. Caused by climate change and diversion.

Animation made with Landsat images from USGS Earth Explorer
earthexplorer.usgs.gov

07.01.2025 16:17 β€” πŸ‘ 19    πŸ” 6    πŸ’¬ 0    πŸ“Œ 1
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Same! But I like to add cheesy 80s theme tune music...

07.01.2025 13:17 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

For this, Photoshop auto-everything!

But quite fond of decorrelation stretches for full-fat science stuff.

07.01.2025 12:55 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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Happy back to work day for me today.

So ignoring the inbox fire by staring at a random rock on Mars, like everybody should.

Sol 1380 Mastcam-Z image from Perseverance. Approximately true and false colour comparison.

07.01.2025 10:35 β€” πŸ‘ 7    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

Oh they can change a lot!

bsky.app/profile/pete...

27.12.2024 14:50 β€” πŸ‘ 4    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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And here's the crater close up. Looking good and fresh.

HiRISE image: www.uahirise.org/ESP_075901_1...

20.12.2024 09:57 β€” πŸ‘ 10    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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A nice Christmas present - my first InSight paper is out! Open access too.

doi.org/10.1029/2024...

Say hello to the Sol 1034a impact crater, the nearest one to InSight.

It was a tough one to find in images. Only 9 m in diameter, but has made over 900 secondary craters!

20.12.2024 09:56 β€” πŸ‘ 24    πŸ” 5    πŸ’¬ 4    πŸ“Œ 1
Science Data Portal

NASA has recently released updated websites for data!

Check out the new Science, Earth, and Planetary data sites!

#OpenScience #NASA #AGU24

science.data.nasa.gov

earthdata.nasa.gov

planetary.data.nasa.gov

13.12.2024 13:39 β€” πŸ‘ 67    πŸ” 22    πŸ’¬ 1    πŸ“Œ 3
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Trying to clear up the view a little bit.

Upscaled, stretched colour, sharpened, removed vignette...

11.12.2024 11:14 β€” πŸ‘ 9    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
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Grab your red/blue glasses, and have a look at part of the view in 3D!

Only NavCam images available so far, but this is lovely.

11.12.2024 10:27 β€” πŸ‘ 10    πŸ” 1    πŸ’¬ 1    πŸ“Œ 0

As the Perseverance rover reaches the edge of Jezero crater, and the view beyond begins to open up, these two fantastic websites might help you explore this amazing part of Mars:

www.marslife.org
areobrowser.com

11.12.2024 09:32 β€” πŸ‘ 30    πŸ” 8    πŸ’¬ 1    πŸ“Œ 2

I had the different terms drummed into me recently on an umpiring course...

"A cricket pitch consists of the central strip of a cricket field between the two wickets."

Of course, everyone (me included) uses all those terms however they want!

05.12.2024 13:44 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

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