Showing posts with label life. Show all posts
Showing posts with label life. Show all posts

Rivers of Blood

Our planet is an amazing place. For example take a look at Blood Falls.
Blood Falls
This five-story, blood-red waterfall pours very slowly out of the Taylor Glacier in Antarctica's McMurdo Dry Valleys.
Roughly 2 million years ago, the Taylor Glacier sealed beneath it a small body of water which contained an ancient community of microbes. Trapped below a thick layer of ice, they have remained there ever since, isolated inside a natural time capsule. Evolving independently of the rest of the living world, these microbes exist without heat, light, or oxygen, and are essentially the definition of "primordial ooze." The trapped lake has very high salinity and is rich in iron, which gives the waterfall its red color. A fissure in the glacier allows the subglacial lake to flow out, forming the falls without contaminating the ecosystem within.
Isn't it amazing how adaptive life can be?

Oh, oh, I'm an Alien

Scientists say that a meteorite that crashed into Earth 40 years ago contains millions of different carbon-containing, or organic, molecules.
The Murchison meteorite landed in a town of that name in Australia in 1969. It has been examined before by scientists looking for specific compounds but this is the first non-targeted analysis and has confirmed a huge variety of carbon-based chemicals.
It is thought the Murchison meteorite could even be older than the Sun, originated more than 4.65 billion years ago. The researchers say it probably passed through primordial clouds in the early Solar System, picking up organic chemicals.

The chances of such a meteorite crashing into the Earth billions of years ago and thus creating life in all its diversity are pretty high. Well, doesn't this make us aliens... What do you think?

[source:bbc.co.uk]