panspermia
The Seven Most Intriguing Worlds to Search for Advanced Civilizations (So Far)
Sometimes, the easy calculations are the most interesting. A recent paper from Balázs Bradák of Kobe University in Japan is…
Life Might Be Difficult to Find on a Single Planet But Obvious Across Many Worlds
If we could detect a clear, unambiguous biosignature on just one of the thousands of exoplanets we know of, it…
Cosmic Dust Could Spread Life from World to World Across the Galaxy
Does life appear independently on different planets in the galaxy? Or does it spread from world to world? Or does…
Since Interstellar Objects Crashed Into Earth in the Past, Could They Have Brought Life?
On October 19th, 2017, astronomers with the Pan-STARRS survey detected an interstellar object (ISO) passing through our Solar System for…
Rogue Planets Could be Habitable
The search for potentially habitable planets is focused on exoplanets—planets orbiting other stars—for good reason. The only planet we know…
Galactic Panspermia. How far Could Life Spread Naturally in a Galaxy Like the Milky Way?
Can life spread throughout a galaxy like the Milky Way without technological intervention? That question is largely unanswered. A new…
Earth’s toughest bacteria can survive unprotected in space for at least a year
A remarkable microbe named Deinococcus radiodurans (the name comes from the Greek deinos meaning terrible, kokkos meaning grain or berry,…
Astronomers Finally Think They Understand Where Interstellar Object Oumuamua Came From and How it Formed
'Oumuamua caused quite a stir when it visited our Solar System in 2017. It didn't stay long, however, and when…
A Microorganism With a Taste for Meteorites Could Help us Understand the Formation of Life on Earth
A new study by a team astrobiologists shows how certain types of extreme bacteria thrive on meteors, which could reveal…
Comets and Interstellar Objects Could be Exporting Earth Life Out into the Milky Way
A new study suggests that comets and asteroids that graze Earth's atmosphere might be responsible for the spread of life…