Proposed new guidelines could be helpful, or they could be a form of scientific censorship.
Belief in a higher power is widespread on Earth, but what about the rest of the galaxy?
But spacecraft searching for life will still have to be sterilized.
The first major face-to-face get-together in almost two years.
Especially in environments where there’s not much else to eat.
Contact with intelligent aliens would happen on their terms, not ours.
Only a tiny fraction of them may be habitable, though.
Not only could they hold subsurface life, they may spread it throughout the galaxy.
Takeaways from a German workshop on mysterious sightings in the sky.
A new evaluation of a nearby star system’s potentially habitable water worlds.
Not every animal bleeds red, even on Earth.
Here we go again: biology or unknown abiotic process?
Our planet’s shadow against the Sun could have been seen from thousands of nearby solar systems.
The environmental setting makes all the difference.
Reviewing our own species’ behavior suggests a cautious approach to contact with extraterrestrials.
New results cast doubt on the presence of life in the Venusian atmosphere.
Zeroing in on the best environmental niches to explore during the next mission to Mars.
Alien life would likely have different biochemistry, which may change the way it reproduces.
Considering the likelihood of an exchange of microbes between Earth and Mars.
Takeaways from this week’s Breakthrough Discuss meeting.