Aliens
Will Advanced Civilizations Build Habitable Planets or Dyson Spheres
Freeman Dyson proposed that advanced civilizations might eventually harvest all the energy coming from their stars by surrounding them with…
Are Claims of Alien Visitation Causing a Problem to Society?
I’ve been an avid stargazer for a fair few decades now and not once have I seen anything that makes…
That’s No Planet. Detecting Transiting Megastructures
One of the easiest ways to find exoplanets is using the transit method. It relies upon monitoring the brightness of…
There’s Another, More Boring Explanation for those Dyson Sphere Candidate Stars
Dyson Spheres have been a tantalising digression in the hunt for alien intelligence. Just recently seven stars have been identified…
Some Intelligent Civilizations Will Be Trapped on their Worlds
Evolution has produced a wondrously diverse variety of lifeforms here on Earth. It just so happens that talking primates with…
We Could Snoop on Extraterrestrial Communications Networks
SETI researchers have directed their search toward interesting star systems where extraterrestrial civilizations could send signals toward Earth. According to…
Can Alien Civilizations Detect Humanity?
One of the fascinating things about being a human in this age is that we can do more than wonder…
First Contact Could Turn Out Well for Humanity
Most science fiction portrays the first contact between humanity and alien civilizations as a disaster. That's probably because our history…
Could We Find Aliens Terraforming Other Worlds?
The first early humans to use fire had no inkling of what it would lead to. Fire was one of…
Is Anyone Planning for Diplomacy with an Extraterrestrial Civilization?
Imagine we detect an interstellar object entering our Solar System. At first, astronomers think it's just another natural interloper like…