Any advanced alien species would have a social structure, but would also likely have predatory roots.
A critical element takes center stage in the discussion of how life began, and where it might exist.
Perseverance, the Fermi Paradox, and the Great Filter.
Lessons from the Laschamps Excursion 42,000 years ago
Could the star system closest to us host a habitable super-Earth?
Could they help us understand intelligent life on other worlds?
This normally toxic substance might have been useful in the oxygen-deprived environment of early Earth.
From biological machines to superintelligence.
Examining this and other intriguing questions at the start of 2021.
A lot has been achieved, even in an awful year.
New insights on how, and when, terrestrial planets become habitable.
A new invention might speed up human exploration of the Red Planet.
…or at least evidence of past biology.
In a place where it rains rocks, we can exclude life for sure, right?
The Permian mass extinction, 252 million years ago, has lessons for today.
Craters could create habitable conditions on many planets and moons.
Do we need to change our search parameters when looking for extraterrestrial life?
But would such cold places be habitable?
A sample-return mission to our planetary neighbor should now be considered.
Life detection on Mars and the icy moons of the outer Solar System looks more and more feasible.