
STEAM Saturday
Cosmic Dawn and Birthday Tortoise
June 28, 2025
In this edition, Japan crashes into the moon again, happy birthday to Goliath, and eyes on the Cosmic Dawn.
It’s been a while, hasn’t it? About a year. This is one of the series on Creative Criticality that takes a bit of work to research and assemble, and things have been a bit busy behind the scenes.

Scientific America – A Japanese Spacecraft Has Crash-Landed on the Moon—Again (June 6, 2025)
A Japanese spacecraft has probably crashed on the Moon, the second failed landing attempt for Tokyo-based private firm ispace.
NPR – Goliath the Galápagos tortoise celebrated his first Father’s Day and 135th birthday (June 17, 2025)
Goliath the tortoise had a big shellebration Sunday as he marked his first Father’s Day.
Space.com – Astronomers see the 1st stars dispel darkness 13 billion years ago at ‘Cosmic Dawn’ (June 11, 2025)
Astronomers have used ground-based telescopes for the first time to peer back 13 billion years in time to observe the universe when the first stars first lifted the cosmic darkness.
Live Science – GPT-4.5 is the first AI model to pass an authentic Turing test, scientists say (April 13, 2025)
Large language models (LLMs) are getting better at pretending to be human, with GPT-4.5 now resoundingly passing the Turing test.
Science.org – The Organ Farm (May 29, 2025)
Gene-edited pig kidneys are finally moving the long-stymied field of xenotransplantation forward.
Constellation Energy – Constellation to Launch Crane Clean Energy Center, Restoring Jobs and Carbon-Free Power to The Grid (Sept 20, 2024)
Constellation signs its largest-ever power purchase agreement with Microsoft, a deal that will restore TMI Unit 1 to service and keep it online for decades; add approximately 835 megawatts of carbon-free energy to the grid; create 3,400 direct and indirect jobs and deliver more than $3 billion in state and federal taxes.
World Nuclear News – NextEra initiates regulatory process to restart Duane Arnold (January 29, 2025)
NextEra Energy has filed a licensing change request for its Duane Arnold nuclear power plant in Iowa with the US Nuclear Regulatory Commission. This marks the first step toward seeking approval to restart the plant, which was taken out of service in 2020.
Dr. Rossome – Facebook and Instagram Reel: Vaccines Don’t Cause Autism (June 6, 2025)
Dr. Ross Newman is an evidence-based pediatrician.

Physics Girl – Hosted by Dianna Cowern, a science communicator and physics alumna from MIT, this show was part of PBS Digital Studios until 2020. She uses her platform to explore complex physics, astronomy, and science-related topics in simple terms.
Dr. Erin Explains the Universe – Dr. Erin Macdonald has a PhD in Astrophysics (University of Glasgow) and is a self-proclaimed N7 Slytherin from Starfleet Academy. Her series focuses on the science behind science fiction. In 2019 she was hired as the official science consultant for the ever-expanding Star Trek Universe and is currently working on all shows in development.
Dr. Erin Explains the Universe was suggested by Sue Kisenwether.
Kyle Hill – Kyle Hill is a science educator with degrees in civil and environmental engineering and science communication. He previously hosted the popular Because Science YouTube series, but now runs The Facility.
xkcd’s What If? – Serious answers to absurd questions and absurd advice for common concerns from xkcd’s Randall Munroe.

Jerry Rig Everything – Zack Nelson has used his love of repairing, simple explanations, and brief tutorials to help millions of people with repairs of their own. Outside of YouTube, his ‘to-the-point’ style of teaching has created instructional and informational videos for manufacturers and factories around the world.
Mark Rober – An engineer and inventor, Mark Rober presents popular science concepts and do-it-yourself gadgets in easy-to-understand terms. He was previously a NASA engineer (where he worked on the Curiosity rover) and a product designer at Apple’s Special Projects Group (where he authored patents involving virtual reality in self-driving cars). One of his best-known series involves the development of a glitter bomb to combat porch pirates and internet scammers.

Practical Engineering – Grady Hillhouse is a civil engineer in San Antonio, Texas. His channel aims to increase exposure and interest in the field of engineering by highlighting the connection between the world around us and the energy, passion, and thought that goes into making it a nicer place to live.
Not Just Bikes – Stories of great urban planning and urban experiences from the Netherlands and beyond. There are a lot of reasons why Dutch cities are so great; it’s not just bikes.
Streetcraft – Blending urban design and visual storytelling to craft solutions & inspire conversations about change.

Peter Brown (Shop Time) – Peter Brown is a geek with a full set of power tools, and he uses that knowledge to experiment, craft, and have fun.
Boylei Hobby Time – A hobbyist just trying to make fun things and inspire you to be creative.
Ali Spagnola – Musician. Comedian. Artist. Exceptional high fiver. Ali Spagnola is your internet best friend! You never know what her comedy and music videos might entail but you know they’ll always be outrageous, clever, and spread joy.

8-bit Music Theory – This YouTuber loves music, video games, and analyzing and talking about music from video games. He promises that if you are a big nerd, you’ll love it too!
Charles Cornell – Charles Cornell, a YouTuber and online content creator in the music education space, has a professional background as a jazz pianist and composer.

Mark Rober – An engineer and inventor, Mark Rober presents popular science concepts and do-it-yourself gadgets in easy-to-understand terms. He was previously a NASA engineer (where he worked on the Curiosity rover) and a product designer at Apple’s Special Projects Group (where he authored patents involving virtual reality in self-driving cars). One of his best-known series involves the development of a glitter bomb to combat porch pirates and internet scammers.
Frank Howarth – A Portland, Oregon-based architect and woodworker, Frank Howarth uses stop-motion animation to demonstrate his design and building process for a variety of projects and art pieces.
Glen and Friends – Glen and Julie Powell of Toronto host this look into recipes from the Depression Era, including if those recipes still work or can be improved in the modern day. It’s a great look into history and how cooking is both science and art.
I Like To Make Stuff – Bob Clagett likes to make stuff, whether it be home renovations, fixing up a vintage car, or building an astromech droid.
Wendover Productions – Wendover Productions, run by filmmaker Sam Denby, is all about explaining how our world works. From travel, to economics, to geography, to marketing, and more, every video will leave you with a little better understanding of our world. Sam also runs the channel Half as Interesting.
If you have any suggestions for STEAM Saturday, please leave them below in the comments. If your suggestion is used, your name will be credited.
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Thanks for stopping by. I hope that something inspired you to get out there and explore the universe.

STEAM Saturday is a celebration of curiosity and imagination through science, technology, engineering, art, and mathematics, the very building blocks of the universe around us.
For more creativity with a critical eye, visit Creative Criticality.





