Dave MacLean 🇨🇦 (@daveatcogs) 's Twitter Profile
Dave MacLean 🇨🇦

@daveatcogs

GIS Faculty, Centre of Geographic Sciences (COGS); Fellow, Royal Canadian Geographical Society; co-Director, Esri Canada Centre of Excellence (COGS). My tweets

ID: 243887428

linkhttps://isspix.com/MapTourHowTo calendar_today28-01-2011 01:14:21

41,41K Tweet

3,3K Followers

888 Following

Chris Hadfield (@cmdr_hadfield) 's Twitter Profile Photo

See the 2 tabs dangling from Luca's left forearm? That's how we turn the fingertip heaters on/off. Legs & feet get cold in the dark too - the fabric is icy cold to touch, like metal in winter. The suit needs its all-temperature thermal control system - evaporator to cool, battery

See the 2 tabs dangling from Luca's left forearm? That's how we turn the fingertip heaters on/off. Legs & feet get cold in the dark too - the fabric is icy cold to touch, like metal in winter. The suit needs its all-temperature thermal control system - evaporator to cool, battery
Canadian Space Agency (@csa_asc) 's Twitter Profile Photo

ESA 🤝CSA For close to 50 years, the Canada–ESA Cooperation Agreement has helped bring Canadian innovation to the world… and to space. Learn more about how this collaboration is shaping the future of the Canadian space sector: asc-csa.gc.ca/eng/blog/2025/… #ESAxCanada🍁

ESA 🤝CSA

For close to 50 years, the Canada–ESA Cooperation   Agreement has helped bring Canadian innovation to the world… and to space.

Learn more about how this collaboration is shaping  the future of the Canadian space sector:  asc-csa.gc.ca/eng/blog/2025/…

#ESAxCanada🍁
Jeff McKenna (@mapserving) 's Twitter Profile Photo

Happy first initial release day to PostGIS! And yes, supports PostgreSQL 7, ha! Release announcement: lists.osgeo.org/pipermail/post… #foss4g

Happy first initial release day to PostGIS! And yes, supports PostgreSQL 7, ha!  Release announcement: lists.osgeo.org/pipermail/post… #foss4g
Craig Baird - Canadian History Ehx (@craigbaird) 's Twitter Profile Photo

On June 10, 1925, four Protestant denominations consisting of 600,000 members merged to create the United Church of Canada. Over the course of its existence, the United Church of Canada has often been ahead of the times. This is the story of the church. 🧵 1/12

On June 10, 1925, four Protestant denominations consisting of 600,000 members merged to create the United Church of Canada. 
Over the course of its existence, the United Church of Canada has often been ahead of the times.
This is the story of the church.

🧵 1/12
joan muise (@joanmuise) 's Twitter Profile Photo

I always rely on excellent Red Chair interviews by our boyfriend George Stroumboulopoulos 🐺 at times like this. Just rewatched the full interview with Brian Wilson. Impactful. RIP. Here’s to the beautiful music.

Dave MacLean 🇨🇦 (@daveatcogs) 's Twitter Profile Photo

QT Riccardo Rossi - IU4APB - @AstronautiCAST co-host: check-out this 👇 2-min+ moonrise video of photos taken in space. There is an orange map-pin on isspix.com/ISS073 at #Brindisi, #Italy (easy to see at the 25-sec mark) for Riky's tweet. Nice camera setup by Nichole “Vapor” Ayers

Craig Baird - Canadian History Ehx (@craigbaird) 's Twitter Profile Photo

Chief Dan George led an amazing life. A gifted poet. An activist for his people. A movie star. Remembered as the first Indigenous person to receive an Academy Award nomination, he was so much more than that. This is his story. 🧵 1/16

Chief Dan George led an amazing life.
A gifted poet. An activist for his people. A movie star.
Remembered as the first Indigenous person to receive an Academy Award nomination, he was so much more than that. 
This is his story.

🧵 1/16
Chris Hadfield (@cmdr_hadfield) 's Twitter Profile Photo

Only 4 more UK shows - Edinburgh tonight, then Glasgow, Oxford and Brighton. "Spectacular - joyous, spellbinding, fun-filled, visually stunning & utterly fascinating. Do yourself a favour and go." fane.co.uk/chris-hadfield

Only 4 more UK shows - Edinburgh tonight, then Glasgow, Oxford and Brighton. 
"Spectacular - joyous, spellbinding, fun-filled, visually stunning & utterly fascinating. Do yourself a favour and go."
fane.co.uk/chris-hadfield
Chris Hadfield (@cmdr_hadfield) 's Twitter Profile Photo

Mornin' Perth! - looking good from space! I'll be at the Riverside Theatre this Friday evening - the show's getting great reviews: "joyous, spellbinding, fun-filled, visually stunning and utterly fascinating!" Still some tickets: premier.ticketek.com.au/events/CHRISHA… Fane

Mornin' Perth! - looking good from space! 
I'll be at the Riverside Theatre this Friday evening - the show's getting great reviews: "joyous, spellbinding, fun-filled, visually stunning and utterly fascinating!"
Still some tickets: premier.ticketek.com.au/events/CHRISHA… <a href="/FaneProductions/">Fane</a>
Dave MacLean 🇨🇦 (@daveatcogs) 's Twitter Profile Photo

Here is #Montevideo, one of the ~1.3 million inhabitants is Profesor_Seldon! Original picture from ||+|| by NASA astronaut #NicholeAyers, on 20 May 2025. High-res (and more) available via pin on isspix.com/ISS073. Nikon Z9, 200 mm, 1/250 sec, ISO-25600, f/2, no flash(!)

Here is #Montevideo, one of the ~1.3 million inhabitants is <a href="/profesor_seldon/">Profesor_Seldon</a>! Original picture from ||+|| by NASA astronaut #NicholeAyers, on 20 May 2025. High-res (and more) available via pin on isspix.com/ISS073. Nikon Z9, 200 mm, 1/250 sec, ISO-25600, f/2, no flash(!)
Jeff McKenna (@mapserving) 's Twitter Profile Photo

For a fun #foss4g Friday, get caught up on the recent QGIS User Conference 2025 talks, which are all on YouTube at youtube.com/playlist?list=…

For a fun #foss4g Friday, get caught up on the recent QGIS User Conference 2025 talks, which are all on YouTube at youtube.com/playlist?list=…
Chris Hadfield (@cmdr_hadfield) 's Twitter Profile Photo

Adelaide, photobombed by the Space Shuttle. See you tomorrow night, final show of my world tour! Last chance for tickets: premier.ticketek.com.au/events/CHRISHA…

Adelaide, photobombed by the Space Shuttle.
See you tomorrow night, final show of my world tour!
Last chance for tickets: premier.ticketek.com.au/events/CHRISHA…
Big Green Bookshop (@biggreenbooks) 's Twitter Profile Photo

SIGNED BOOK NEWS! FINAL ORBIT, the brand new space thriller by my very favourite astronaut Chris Hadfield Chris Hadfield is published in October. But here's something. You can order a SIGNED copy now! From me! ORDER HERE! biggreenbookshop.com/signed-copies/…

SIGNED BOOK NEWS!

FINAL ORBIT, the brand new space thriller by my very favourite astronaut Chris Hadfield <a href="/Cmdr_Hadfield/">Chris Hadfield</a> is published in October.

But here's something. 

You can order a SIGNED copy now!

From me!

ORDER HERE!

 biggreenbookshop.com/signed-copies/…
Massimo (@rainmaker1973) 's Twitter Profile Photo

I've been posting for 10+ years, non-stop, every single day If you liked some of these posts and want to support me, you can, by subscribing for $2/month 🙏 You will not not only help me, but also unlock from 2 to 5 daily long essays about everything interesting.

Jeff McKenna (@mapserving) 's Twitter Profile Photo

Watch the #foss4g Europe livestream: currently "pygeoapi project status": vimeo.com/1101771969 (see all rooms at 2025.europe.foss4g.org/schedule/talks/ ) #passion

Watch the #foss4g Europe livestream: currently "pygeoapi project status": vimeo.com/1101771969 (see all rooms at 2025.europe.foss4g.org/schedule/talks/ ) #passion
Jeff McKenna (@mapserving) 's Twitter Profile Photo

Tune-in now for the "State of GRASS" talk, at #foss4g Europe at vimeo.com/1101913249 (schedule: 2025.europe.foss4g.org/schedule/talks/ ) #passion

Tune-in now for the "State of GRASS" talk, at #foss4g Europe at vimeo.com/1101913249 (schedule: 2025.europe.foss4g.org/schedule/talks/ ) #passion
Canadian Space Agency (@csa_asc) 's Twitter Profile Photo

This RADARSAT-2 image illustrates the possible extent of an oil spill in Manila Bay, Philippines, on July 27, 2024. Learn how #RADARSAT data enables authorities to quickly respond to an oil spill in the ocean: asc-csa.gc.ca/eng/satellites… #OnOurRadar #SpaceBenefits

This RADARSAT-2 image illustrates the possible extent of an oil spill in Manila Bay, Philippines, on July 27, 2024.

Learn how #RADARSAT data enables authorities to quickly respond to an oil spill in the ocean: asc-csa.gc.ca/eng/satellites…
#OnOurRadar #SpaceBenefits