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Pioneer 10: The Pathfinder
The mission of Pioneer 10 was one of the greatest breakthroughs in the exploration of space. It was launched to pass through our solar system and eventually head into interstellar space, bringing new knowledge about the existence of the asteroid belt, the atmosphere of Jupiter, and the concept of gravitational assist. It was launched on March 2, 1972, from Cape Canaveral, Florida. Its mass was about 258 kg (including fuel and instruments). The first goal was to cross the aste

Mr.Spience
Nov 55 min read


The Antikythera Mechanism: The Lost Miracle of Ancient Greek Technology
For years, I’ve read about the Antikythera Mechanism — the first computer in human history. Recently, I had the chance to see it with my...

Mr.Spience
Oct 65 min read


Why don’t satellites fall?
If you throw a stone straight ahead, it will fall to the ground. But if you could throw it fast enough that, as it falls, the Earth...

Mr.Spience
Oct 63 min read


Quantum entanglement
When two souls remain connected beyond space and time There is something in nature that makes you believe that when two people truly...

Mr.Spience
Jun 213 min read


Final Greek Exams: Physically... Physics!
This year’s Physics exam seemed to reward rigid discipline and mechanical application of methods , rather than a deep understanding of...

Mr.Spience
Jun 61 min read


Computer Science – For the well-trained... and the sharp-eyed
This year's Computer Science exam didn’t surprise in terms of syllabus deviation or unreasonable complexity. But it was clearly tailored...

Mr.Spience
Jun 61 min read


Critique of the 2025 Panhellenic Exams: Mathematics & Biology (Orientation Subjects)
Mathematics – Did We Go Overboard? This year’s Mathematics exam was... tough. Not the kind that makes you think creatively — but the kind...

Mr.Spience
Jun 22 min read


Civilization Type I, II, or III?
I don't suppose you still believe that we are the only civilization in the universe (let alone on Earth—so I don't set the comment...

Mr.Spience
Mar 123 min read


Disaster Scenario: 1. Meteorite fall in the Sea
With today's article, we are launching a new column on the blog, dedicated to potential disaster scenarios for our planet. The first...

Mr.Spience
Sep 27, 20244 min read


Folder: Man on the Moon. A modern lie?
After extensive research, I will try to answer a question that has often piqued our curiosity and one that I am frequently asked. A...

Mr.Spience
Sep 18, 20246 min read


The Riddle of the Three Doors and the Goats: A Comedy-Tragedy
Once upon a time, in a distant land where goats were more famous than galaxies, a clever TV show host, Mr. Barbounakis, had an idea. He...

Mr.Spience
May 18, 20242 min read


The riddle with the 100 prisoners
There are 100 prisoners in a jail. Each one has a number from 1 to 100. In a room, there are 100 boxes numbered from 1 to 100. Each box...

Mr.Spience
May 13, 20242 min read


"Now": Does it exist? Is it what we think? Its relationship with gravity and light.
Lately, I reconnected with my first love. In the advertisement of a well-known chocolate, they used to say that 'your first love is also...

Mr.Spience
Apr 20, 20248 min read


Astrobiology: What science is this again?
Astrobiology, the interdisciplinary field that combines astronomy, biology, geology, and other sciences, plays a critical role in our...

Mr.Spience
Apr 13, 20242 min read


We were all there... Together since always...
And no, I'm throwing you a plot twist, I'm not referring to the big bang! Yes, obviously (if it happened), we were all and everything...

Mr.Spience
Apr 12, 20242 min read


A universe buzzing with life? What is the probability of us being alone in the universe?
We regularly hear about UFO sightings, human and animal abductions by extraterrestrials, ancient encounters with aliens, captures of...

Mr.Spience
Apr 10, 20244 min read


Total Solar Eclipse: Why don't we have them constantly?
With regard to the solar eclipse that occurred yesterday, have you ever wondered why solar eclipses don't happen every day, every month,...

Mr.Spience
Apr 9, 20242 min read
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