John Spear
banner
spearmicrobe.bsky.social
John Spear
@spearmicrobe.bsky.social
Professor, Colorado School of Mines: Environmental Microbiology; Geobiology; Life in Extremes; Environmental Policy; Climate Change. ORCiD: 0000-0002-4664-7438
https://people.mines.edu/jspear/
Big Daddy Bagels!
February 3, 2026 at 5:48 PM
Want to ride the front of the wave of all-things-microbiology; field work, cultivation, microscopy, molecular, bioinformatics and AI tools? Me too!
Please join us @mblscience.bsky.social for the 2026 Summer Microbial Diversity Course!
Applications due soon.
www.mbl.edu/education/ad...
Microbial Diversity | Marine Biological Laboratory
The goal of the course is to teach professors, postdocs and advanced graduate students how to discover, cultivate, and isolate diverse microorganisms catalyzing a breadth of chemical transformations, ...
www.mbl.edu
February 2, 2026 at 9:58 PM
Another awful day in American history.
Another life lost in the name of…what?
None of this should be happening.
Where are the adults; politicians with brains; policy makers?
As for this adult, I am ashamed to be American. ‘Nuff said.
The guy in grey disarms the man on the ground being beaten—BEFORE shots were fired
January 24, 2026 at 6:44 PM
A major loss of an outstanding creator.
An amazing gain of a true meathead.
Don’t ever treat any human in such fashion.
www.theguardian.com/us-news/2025...
Trump’s post on Rob Reiner sparks outrage from lawmakers and celebrities
President’s statement blaming acclaimed director’s death on his dislike of him described as ‘disgusting’ and ‘vile’
www.theguardian.com
December 16, 2025 at 12:01 AM
Whoa!—that’s definitely above the 2 ppb human detection limit = stinky!
November 25, 2025 at 12:23 AM
What, H2S too much? H2S = smell of home = Yellowstone
November 24, 2025 at 11:53 PM
Winogradsky column algae + afternoon ☀️ = a bunch of oxygen 🫧 🫧 🫧 🫧
November 24, 2025 at 11:19 PM
Thanks @spencersoicher.bsky.social @nexton9news.bsky.social for a story on the importance of environmental contamination, site clean-up and of course, microbes!🦠 🦠

www.9news.com/article/spor...
Here's what the remediation for environmental issues may look like at Burnham Yard
The historic railyard likely contains subsurface contamination from decades of industrial use that will need to be addressed before the planned stadium.
www.9news.com
November 21, 2025 at 8:54 PM
The Aurora Borealis over Castle Rock, Golden, CO—outstanding!
November 12, 2025 at 5:03 AM
Every now again walking to class @coschoolofmines.bsky.social you have to make sure you look up and take in the view!
November 11, 2025 at 3:11 AM
Science and the impact of people who work for more knowledge in all fields can and do change the world—lessons for all of us on the passing of Dr. Jane Goodall.
October 1, 2025 at 6:34 PM
Filamentously tethered, afternoon fresh, photrophically generated, oxygen bubbles on top of a new @mblscience.bsky.social Microbial Diversity Course produced Winogradsky column!
October 1, 2025 at 12:30 AM
The latest and greatest from an amazing team of authors. See what you think:

A Comprehensive Framework for Assessing Terrestrial Analogue Field Sites for Ocean Worlds - Stern - 2025 - Journal of Geophysical Research: Planets - Wiley Online Library agupubs.onlinelibrary.wiley.com/doi/10.1029/...
A Comprehensive Framework for Assessing Terrestrial Analogue Field Sites for Ocean Worlds
The choice of analogue field site for ocean worlds research requires traceability to a well-developed science question We present a two-step process to evaluate field sites with respect to their ...
agupubs.onlinelibrary.wiley.com
September 5, 2025 at 10:31 PM
Today’s first day @coschoolofmines.bsky.social ain’t yesterday’s. A small, niche engineering school discovered.
August 25, 2025 at 5:17 PM
August 9, 2025 at 7:37 PM
Insanity, the dominant paradigm, will disintegrate world class health and science research in America.
What say you Congress?
www.whitehouse.gov/presidential...
Improving Oversight of Federal Grantmaking
By the authority vested in me as President by the Constitution and the laws of the United States of America, and to improve the process of Federal
www.whitehouse.gov
August 9, 2025 at 7:28 PM
How to Winogradsky from 2025 Microbial Diversity @mblscience.bsky.social
August 6, 2025 at 6:57 PM
Monitor image of a stromatolite’s top from Yellowstone National Park; microbially complex; builders and tenants present. Thx @mblscience.bsky.social for a nice tool in the toolbox!
August 1, 2025 at 9:07 PM
Science is Art.
Art is Science.
Not a bad afternoon with scanning electron microscopy @mblscience.bsky.social with Microbial Diversity!
July 31, 2025 at 6:46 PM
Never ceases to amaze how one can pull an entire lab out of 2 closets; conduct and teach science to 20 Amazing! students at the Microbial Diversity Course and have great science produced @mblscience.bsky.social
…stay tuned for publications….
July 24, 2025 at 11:00 PM
I once had a joyful evening in the Ed Sullivan Theater watching magic happen in front of me. An educated, civil, democratic society values the jesters—Stephen Colbert is a master teacher we all learn from.

Apparently CBS Paramount does not, enhancing our decline.
www.nytimes.com/2025/07/17/b...
CBS Canceling ‘Late Show With Stephen Colbert’ After Next Season
www.nytimes.com
July 18, 2025 at 4:20 AM
Reposted by John Spear
Need to see the live action!
July 8, 2025 at 1:14 PM
Reposted by John Spear
Week two on Microbial Diversity. One of our course directors, John Spear, spoke about H2 and sulfur metabolism, including his adventures doing research in caves.
@mblscience.bsky.social
July 14, 2025 at 11:33 PM
A media extravaganza at Microbial Diversity ‘25 @mblscience.bsky.social difficult to pull off anywhere—Thank you Juan Parales et al.!
July 7, 2025 at 9:24 PM
Thanks!
July 6, 2025 at 1:47 AM