Astrobiology

The Puzzle of Planetary Protection

The recent announcement by NASA confirming the presence of liquid water on Mars pulls planetary protection into the spotlight and…

9 years ago

More livable than Earth? New index sizes up the habitability of alien exoplanets

Researchers at the University of Washington's Virtual Planetary Laboratory have devised a new habitability index for judging how suitable alien planets…

9 years ago

Is There a Kraken in Kraken Mare? What Kind of Life Would We Find on Titan?

Could there be life on Saturn’s large moon Titan? Asking the question forces astrobiologists and chemists to think carefully and…

9 years ago

More Evidence That Comets May Have Brought Life to Earth

The idea of panspermia -- that life on Earth originated from comets or asteroids bombarding our planet -- is not…

9 years ago

The Martian Curiosity Looks Back on 1000 Sols of Exploration on the Red Planet

Looking back 1000 Sols on the Red Planet NASA’s Martian Curiosity rover looks backs to 1000 Sols of science and…

9 years ago

Beyond “Fermi’s Paradox” II: Questioning the Hart-Tipler Conjecture

Welcome back to our Fermi Paradox series, where we take a look at possible resolutions to Enrico Fermi's famous question,…

10 years ago

Beyond “Fermi’s Paradox” I: A Lunchtime Conversation- Enrico Fermi and Extraterrestrial Intelligence

Welcome back to our Fermi Paradox series, where we take a look at possible resolutions to Enrico Fermi's famous question,…

10 years ago

Mars Loses an Ocean But Gains the Potential for Life

It's hard to believe it now looking at Mars' dusty, dessicated landscape that it once possessed a vast ocean. A…

10 years ago

Who Speaks for Earth? The Controversy over Interstellar Messaging

Should we beam messages into deep space, announcing our presence to any extraterrestrial civilizations that might be out there? Or,…

10 years ago

By Boots or Bots? How Shall We Explore?

With robotic spacecraft, we have explored, discovered and expanded our understanding of the Solar System and the Universe at large.…

10 years ago