The Galactic Inquirer

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Latest news

Multi-Spectral Imagery of the Multi-phase ISM in M33

We investigate star formation in the Sc(s) II-III galaxy M33 by analyzing eight prominent HII regions using multi-wavelength data from the Spitzer Space Telescope and optical imagery. Results indicate that dust emission is a compact tracer of high-mass star formation, while PAH and H-alpha emissions decline more slowly with galactocentric radius.

Dispatches from the Cosmos — Winter 2025

Just like the dust that stubbornly besmirches your computer monitor, bookcase, and ancestral credenza, cosmic dust is now recognized to have a multiplicity of origins.  For decades, astronomers thought that aging red giant stars produced most of the dust responsible for obscuring and reddening our views of nebulae and more distant stars ...

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Earth & Space Report #12: Exploring our Cosmic Origins

Carl Sagan wrote that "If you wish to make an apple pie from scratch, you must first invent the universe.” We wish to know our home, so back we go, to the Big Bang, and step by step to today.

Sticking Close to Home #2 – Bode’s Law and Planetary Spacings

There are definite interrelations between the spacings of the planets – they are much more than giant rocks randomly flying through space.  There is order and a scheme, a cosmic dance of the planets as some romantics like to say.

Interstellar Communications

Introduction: It took less than two billion years for our...