SETI vs the possibility of interstellar exploration

Science News has a short article discussing a calculation someone has done showing how small the volume of space examined by SETI (Search for Extraterrestrial Intelligence) is relative the overall size of the galaxy. With no luck so far in a six-decade search for signals from aliens, you’d be forgiven for thinking, “Where is everyone?” A … Continue reading SETI vs the possibility of interstellar exploration

The power of symbolic thought

One of the things I've pondered a few times on this blog is our ability to recognize another intelligence, such as an extraterrestrial intelligence.  On the face of it, this seems straightforward.  Do they form societies, use technology, manipulate their environment, and overall show signs of intelligence? Except an alien intelligence may be so different from … Continue reading The power of symbolic thought

Why alien life will probably be engineered life

Martin Rees has an interesting article at Nautilus: When We Find Aliens, We Might Find Something Like the Borg This September, a team of astronomers noticed that the light from a distant star is flickering in a highly irregular pattern.1 They considered the possibility that comets, debris, and impacts could account for their observations, but each of … Continue reading Why alien life will probably be engineered life

Snowden’s answer to the Fermi Paradox and its assumptions

The Fermi Paradox is the question that, if the conditions for life in the galaxy are as ubiquitous as they appear to be, so that there should be hundreds, if not thousands of alien civilizations out there, then where is everyone?  Why have we found no evidence for any for those civilizations?  And why aren't they here? … Continue reading Snowden’s answer to the Fermi Paradox and its assumptions

G-HAT (Glimpsing Heat from Alien Technologies)

For those interested in the post about finding advanced civilizations in other galaxies by their heat emissions, Paul Gilster at Centauri Dreams has a write up about the study, including links to additional material as well as the actual paper. I found that this part clarified the seeming contradiction in the Science Daily article. The currently reported work … Continue reading G-HAT (Glimpsing Heat from Alien Technologies)

Searching for advanced civilizations in other galaxies: 50 possible candidates found?

At first, this article seems like a bit of a downer: Search for advanced civilizations beyond Earth finds nothing obvious in 100,000 galaxies -- ScienceDaily. After searching 100,000 galaxies for signs of highly advanced life, a team of scientists has found no evidence of advanced civilizations there. The idea behind the research is that, if … Continue reading Searching for advanced civilizations in other galaxies: 50 possible candidates found?

Alien search won’t doom planet Earth, say scientists who want to contact ET

It's interesting how these related stores seem to come in batches: Alien search won't doom planet Earth, say scientists who want to contact ET | Science | The Guardian. Fears that a major program to contact alien life could spell disaster for planet Earth were dismissed as “paranoid” on Thursday by scientists who hope to beam … Continue reading Alien search won’t doom planet Earth, say scientists who want to contact ET

Subsurface oceans everywhere and the possible pervasiveness of life

Well, it now looks like Ganymede, one of Jupiter's moons, has a subsurface ocean. Ganymede's great distinction among moons - apart from its size - is that it has its own magnetic field. Hubble has managed to track that field's behaviour by watching how it draws in and excites space particles, generating a glow of … Continue reading Subsurface oceans everywhere and the possible pervasiveness of life

Three conditions are necessary for SETI to succeed

Tom Hartsfield has a post up at Real Clear Science criticizing both the Drake equation and SETI: If you like science fiction, you're probably familiar with the Drake equation. This famous one-line formula solves for the number of intelligent alien civilizations within our galaxy with whom we might be able to communicate. Supporters of the … Continue reading Three conditions are necessary for SETI to succeed