Guide to Space

What is the Kardashev Scale?

In 1961, Russian-Soviet astrophysicist Nikolai Kardashev published a paper where he introduced the Kardashev Scale, a means of classifying extraterrestrial…

5 months ago

What is Einstein’s Theory of Relativity?

More than a century after he first proposed it, Einstein's Theory of Relativity is still foundational to our understanding of…

6 months ago

Messier 96 – the NGC 3368 Spiral Galaxy

Located in the Leo constellation, about 31 million light-years from Earth, is the double-sparred spiral galaxy known as Messier 96.

7 months ago

The Gemini Constellation

Located in the northern hemisphere, there's the constellation Gemini (aka. The Twins) one of the 48 compiled by Ptolemy and…

7 months ago

The Constellation Fornax

Welcome to another edition of Constellation Friday! Today, in honor of the late and great Tammy Plotner, we take a…

8 months ago

Messier 95 – the NGC 3351 Barred Spiral Galaxy

Located in the constellation Leo, about 33 million light-years from Earth, is the barred spiral galaxy known as Messier 95.

8 months ago

What Are Extrasolar Planets?

For countless generations, human beings have looked out at the night sky and wondered if they were alone in the…

1 year ago

Beyond “Fermi’s Paradox” XVI: What is the “Dark Forest” Hypothesis?

A recent addition to the list of possible resolutions to the Fermi Paradox: nobody is broadcasting because they don't want…

2 years ago

Beyond “Fermi’s Paradox” XV: What is the Percolation Theory Hypothesis?

Could it be that the reason we haven't met any aliens is because interstellar colonization simply isn't practical? Not exactly…

2 years ago

Beyond “Fermi’s Paradox” XIV: What is the Aurora Hypothesis?

Is it possible that we haven't heard from aliens because colonizing exoplanets is hazardous to your health? So says the…

2 years ago