Are we alone?

There are lots of reports of extraterrestial life, mostly in humanoid form. It is highly unlikely that we are alone in the universe. Current scientific theories seem to go for smaller, bacterial life, rather than humanoids. Several space-probes have been sent to the planet Mars, all apparrently inconclusive. Theories of silica life seem to say NASA has been ignoring important evidence, since there is silica on Mars.

The actual sightings are rather diverse,from creatures a bit like the Cybermen of Doctor Who to giant bigfoot-like creatures, as you would expect from aliens.

Conditions suitable for life are probably all over the solar system, from Mars to Enceladus, a moon of Saturn.