SETI
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…
Snooping on Alien Messages Passing Through the Solar System
Researchers at Penn State University have studied a new technique that could use a star’s ability to focus and magnify…
There Could Be Four Hostile Civilizations in the Milky Way
In a series of papers, amateur astronomer and exoplanet researcher Alberto Caballero narrows down who could have sent the Wow!…
Objects That Share the Same Orbit are Common in the Solar System. But we’ve Never Seen co-Orbital Exoplanets. Why?
“Where are all the Trojans” is a question valid in both the study of ancient history and the study of…
Humanity Will Need to Survive About 400,000 Years if We Want any Chance of Hearing From an Alien Civilization
If there are so many galaxies, stars, and planets, where are all the aliens, and why haven't we heard from…
If Aliens Were Sending us Signals, This is What They Might Look Like
An international team of scientists have created a new tool for identifying possible radio transmissions from an extraterrestrial civilization
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…
Astronomers Scan the Center of the Milky Way for Any Sign of Intelligent Civilizations. Nothing but Silence.
Are there civilizations somewhere else in the Universe? Somewhere else in the Milky Way? That's one of our overarching questions,…
What is the Arecibo Message?
In 1974, the famous Arecibo Message was sent into space, humanity's first and only attempt at messaging extraterrestrial intelligence.
A New Way to Detect Alien Megastructures
How do you power a super advanced alien civilization? Soak up a star. We harness the power of the Sun…