The precise age of our Solar System – 4,567,300,000 years – is defined by millimetre-sized pieces of rock found inside primitive meteorites.4yr ⋅ Tim-Cosmos ⋅ r/Astronomy
From my geology undergraduate degree to my cosmochemistry PhD. Geology can take you far beneath Earth’s surface and far out into the Solar System! This is the meteorite I studied for my PhD, and the mass spectrometer I used (in my graduation robes). [University of Bristol, UK].4yr ⋅ Tim-Cosmos ⋅ r/geology
I've written over 100,000-words of a book in the past year on my iPad Mini. Having a beautiful writing environment lets me do my best writing.4yr ⋅ Tim-Cosmos ⋅ r/ipad
Today I am making a 6 hour train journey with a sack load of 3-billion-year old Lewisian gneiss.4yr ⋅ Tim-Cosmos ⋅ r/geology
A quick nap atop boulders of 3-billion-year old Lewisian gneiss in the remote Scottish Highlands. Geologists can find a comfy spot anywhere. :-)4yr ⋅ Tim-Cosmos ⋅ r/geology
A thin slither of meteorite, just before I measured its oxygen isotope composition on a mass spectrometer.5yr ⋅ Tim-Cosmos ⋅ r/geology
Annoying Music UI quirk. When you set the macOS ‘Accent colour’ to grey, you can‘t tell if shuffle is on or off. Super-annoying.4yr ⋅ Tim-Cosmos ⋅ r/MacOS
There is a giant boulder of Lewissian gneiss (~3-billion-year old) in the courtyard of my place of work. I walk past it every day. [Nottingham, UK]4yr ⋅ Tim-Cosmos ⋅ r/geology
As a Brit, my favourite feature of Catalina is that ‘Trash’ has been renamed ‘Bin’ :-)4yr ⋅ Tim-Cosmos ⋅ r/MacOS
The permanently floating Facetime Audio/phone call window is one of the most annoying macOS quirks. Covers up so many important and useful menus/buttons. Wish there was a way to hide it, or at least move it.4yr ⋅ Tim-Cosmos ⋅ r/MacOS
Orange and blue vibes. Mechanical keyboard, nice lighting, and hydration.4yr ⋅ Tim-Cosmos ⋅ r/Minimal_Setups
Three-billion-year old metamorphic baseement; five-hundred-millon-year old sediments; ten-thousand-year old glaciation. Scottish Highlands, UK.4yr ⋅ Tim-Cosmos ⋅ r/geology
The hourglass of geological time ebbs by as the mountains turn to sand. [Scottish Highlands]5yr ⋅ Tim-Cosmos ⋅ r/geology
The Fersman Mineralogical Museum in Moscow, Russia. One of the most beautiful collections I have ever had the pleasure of visiting. Truly one of Nature's great libraries.4yr ⋅ Tim-Cosmos ⋅ r/geology
I am a meteorite research scientist and I wrote a science book – Meteorite: The Stones From Outer Space That Made Our World. It is hitting shelves soon and is available to pre-order now! I can't wait for people to read it.4yr ⋅ Tim-Cosmos ⋅ r/geology
My girlfriend took this photo of me next to an exposure of 3-billion-year old Lewisian Gneiss in north-west Scotland. It is some of the oldest rock in Europe.5yr ⋅ Tim-Cosmos ⋅ r/geology
Perspective matters. Strata that appear folded on a geological map might be flat-lying.4yr ⋅ Tim-Cosmos ⋅ r/geology
Rocks shine in X-rays of different 'colours' when you hit them with an electron beam. This a slice of meteorite I am currently researching.4yr ⋅ Tim-Cosmos ⋅ r/geology
I came across this community a few months ago and thought you were all crazy. I still think you're all crazy, but I am now one of you. I am a writer, and my whole writing experience has been transformed by my Keychron K2. Thank you all.4yr ⋅ Tim-Cosmos ⋅ r/MechanicalKeyboards
In 1910, a toxin called cyanogen was detected in the tail of Halley's Comet, mere months before it passed close to the Earth. Thrown into a panicked frenzy by the press – who reported that the toxins 'possibly snuff out all life on the planet' – sales of 'anti-comet pills' skyrocketed.4yr ⋅ Tim-Cosmos ⋅ r/interestingasfuck
Diogenites are igneous meteorites. They formed when massive crystals of orthopyroxene crystallised from a magma ocean and settled to the base to form vast piles. They originate from an asteroid that underwent complete melting 4.6-billion-years ago.4yr ⋅ Tim-Cosmos ⋅ r/geology
Love having my trusty Jimny waiting for me at the end of a long hike. Had it a few months and still brings a smile to my face :-)3yr ⋅ Tim-Cosmos ⋅ r/Jimny
Working from home for the foreseeable future. MacBook Pro + iPad combo. (Plus coffee machine).4yr ⋅ Tim-Cosmos ⋅ r/Workspaces
Sunday morning. It's raining outside. I have tea, and I am writing my book.4yr ⋅ Tim-Cosmos ⋅ r/CozyPlaces
This fist-sized piece of the Murchison meteorite, like many other carbonaceous chondrites, contains: (1) extraterrestrial water; (2) extraterrestrial amino acids; (3) dust-sized planet building blocks Earth globe; and (4) literal stardust.4yr ⋅ Tim-Cosmos ⋅ r/geology
My iPad is the tool I’m using to write my first book. I keep it very task-specific and minimal.5yr ⋅ Tim-Cosmos ⋅ r/ipad
I am a meteorite research scientist and I wrote a book – Meteorite: The Stones From Outer Space That Made Our World. It is hitting shelves soon!4yr ⋅ Tim-Cosmos ⋅ r/meteorites
