Fermi Paradox
Maybe we don’t see Aliens Because They’re Waiting to Hear a Signal From us First
We've had a long-running series here at UT on potential solutions Fermi Paradox - why aren't we able to detect…
Maybe We Don’t See Aliens Because Nobody Wants to Come Here
The Fermi Paradox won't go away. It's one of our most compelling thought experiments, and generations of scientists keep wrestling…
Alien Artifacts Could Be Hidden Across the Solar System. Here’s how we Could Search for Them.
Do aliens exist? Almost certainly. The universe is vast and ancient, and our corner of it is not particularly special.…
Before we Develop Self-Replicating Machines to Explore the Universe, we Should Figure out how to Turn Them off Again
In a recent study, aerospace engineer Prof. Alex Ellery proposes a biologically-inspired method that could keep self-replicating robots from running…
Why Would an Alien Civilization Send Out Von Neumann Probes? Lots of Reasons, says a new Study
A new study takes a look at Von Neumann probes and asks the really important questions: "why would aliens send…
If Alien Probes are Already in the Solar System, Maybe we Could Detect Them Calling Home
According to a new study, alien probes may permeate the galaxy, and could be detected in the Solar System when…
Beyond “Fermi’s Paradox” XVII: What is the “SETI-Paradox” Hypothesis?
Another reason we haven't heard from aliens is that the possibility that every everyone is listening, but nobody's messaging!
If Aliens Are Out There, We’ll Meet Them in a Few Hundred Million Years
A new study indicates that aliens are probably out there, occupying half of the Universe, and we'll likely meet them…
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…
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…