Centi Astro-Space Activities

09/26/2026

09/11/2026

09/01/2026

Decoding Distant Worlds

09/20/2025

Worlds Beyond and Astrobiology Insights - Blog #15
Sapphire Canyon and the Strongest Evidence
Yet of Ancient Life on Mars
Christopher S. Centi September 19, 2025

Introduction: A Martian Whisper Across Time
In the dry riverbed of Jezero Crater, NASA’s Perseverance rover has uncovered what may be the most compelling evidence yet of ancient microbial life on Mars. The rock sample --nicknamed Sapphire Canyon -- was drilled from a formation called Cheyava Falls in July 2024. Click the link to read the blog: https://www.centiastrospace.com/blog-1 Go to the bottom of the page and click the button to take you to the full blog. There is also a button to bring you to an educational lesson based on the blog.

08/11/2025

07/31/2025

Other Life on a Purple World
Christopher S. Centi July 29, 2025
My previous blog dated June 28, delved into the search for possible life on worlds using a different type of photosynthesis. Research by Lígia Fonseca Coelho's paper "Purple is the New Green: Biopigments and Spectra of Earth-like Purple Worlds," is fundamentally challenging this green-centric perspective. This work suggests that alien life might not be green at all, but rather a spectrum of other colors, with purple emerging as a particularly strong contender. Read the full blog here: https://www.centiastrospace.com/blog-1

07/31/2025

Beyond Green:
The Cosmic Quest for Life’s Colors
Christopher S. Centi June 28, 2025
Why Purple Worlds Could Be Teeming with Alien Life
Read the full blog here: https://www.centiastrospace.com/blog-1

06/13/2025

A crewed mission to Mars would rank among the most complex and costly undertakings in human history—and US President Donald Trump has vowed to make it a national priority.