It would seem that the old maxim "Everything in moderation" still rings true today - too much of a good thing can actually be a bad thing. This may be especially true as far as technology is concerned. The reason: too many silver nanoparticles in today's consumer products may be killing off beneficial bacteria. More bacteriocidal news follows after the jump.

Size does matter - to geologists. We're referring to the size of meteorites that have collided with Earth in the past, of course. Recently, these scientists have discovered a new way to estimate not only the size of these meteorites, but their frequency of collision as well. More on that after the jump.

In case you are not aware, the Kilauea Volcano in Hawaii had its first eruptive explosion on March 19 since 1924. The explosion took place in the middle of a national park, causing problems never imagined before by the U.S. government. The rest of the details are available after the jump!

If you thought that once upon a time, happy dinosaurs were killed off by a giant, blazing rock with "death from above" written all over it, you may only be half right. According to the latest research, the impact probably killed the larger land creatures, but the smaller species could have succumbed to a more watery fate. Curious? read the full article for the skinny on it.

Underwater volcanic eruptions are fairly common, but under-ice eruptions? Not so much. Scientists have discovered evidence of a volcano erupting under the Antarctic ice sheet 2000 years ago. Details in the full article.

We've seen global warming rear its ugly head in ways that run from in the subtle to the stark in recent years. A recent report, however, suggests that the Pentagon's Northern defense strategy may be put into compromise by the planetary crisis. Find out what's happening to NORAD radars up in Alaska and Canada in the detailed version.

Oh man. The Apophis meteor is to hit us in year 2029, but even before that happens, the world might be facing a more immediate problem. See, it's been known that Yellowstone has been sitting on top of a super volcano. And though it has long been revealed that Yellowstone is way past its due date for explosion, recent findings show that the 30-mile gap between the magma and Yellowstone's surface has now been substantially reduced to only 6 miles. Is it getting hot in here or what? There's still some hope though...

Analysis of ancient rocks dating back 2.5 billion years ago indicated that there was oxygen present in the Earth's atmosphere around that time. The results of the study push back the previous theory that the Earth filled up with oxygen about 100 million years later than the age of the rock, implying that life on Earth may have started earlier than previously thought.

The "Great Oxidation Event" was the tipping point of Earth's history when oxygen began to appear, creating the foundation for life. The theory before the discovery of the 2.5 billion year old rock in Australia was that the appearance of oxygen on Earth was sudden, caused by organisms who evolved a little too fast (like the X-Men) and started photosynthesizing.

The discovery of the rock indicates that life began much earlier, and therefore this gives the timeline for life's evolution to relax a little. This means that life may have evolved more gradually instead of a sudden burst of prolific mutant photosynthesizing bacteria. Geologist Robert Creaser explains:

Our research indicates there were oxygen-producing organisms for many millions of years before the Great Oxidation Event, and then perhaps a 'tipping point' was reached, which launched the Great Oxidation Event.

So what does this mean for us modern oxygen breathers? Nothing really, life goes on whether or not life started earlier than we thought. Still, it's always nice to trace your family tree back up the gene pool of mutant bacteria.

 

Some of us have probably read that some 250 million years ago, the Earth was pretty different in terms of geography from how it is today. There were no continents back then, just a giant mass of land scientists now call Pangaea.

However, the Earth's plates continually move through the years, inch by inch until Pangaea was broken up into today's continents. That explains why the land masses of this era fit together like jigsaw puzzle pieces.

That begs the question: If the continents continue to drift, how will the world look like 250 million years from now? Scientists project that history will probably repeat itself and a new supercontinent will form. It's a bit too early, but it's already been named Pangaea Ultima.

The picture above shows how the world will look. Travel agencies, airline companies, and ocean lining industries will have to rethink how they do business here. Man might not be around to see this anyway, but roaches will probably be smart enough by that time to figure things out for themselves.

Probably one of the most talked about political and religious controversies of all time is the Mt. Ararat anomaly in northeastern Turkey. This is reportedly the location where we can find the remains of the biblical Noah's Ark. The problem is that the region remains uncharted even until today.

The company Satellite Imaging Corporation, with the help of GeoEye, has recently recreated a 3D visualization for the said anomaly using the image data sent in by stereo satellite IKONOS. Prior to this, all attempts to unravel this mystery have utilized 2D satellite missions.

Mission proponent University of Richmond's School of Continuing Studies Associate Professor Porcher L. Taylor III said, "Thanks to the world-class technology and expertise of GeoEye and Satellite Imaging Corporation (SIC), with this ground-breaking 3D (stereoscopic) Fly-through movie, we are witnessing a quantum leap in making the Ararat Anomaly even more transparent for Ararat researchers and the public".

So, have we really stumbled upon Noah's Ark?