Saturn's Moon Titan Has Methane Lake

Titan, the only moon in our solar system known to have an atmosphere, appears to have a tropical lake near its equator.  Titan is also the only moon known to have standing water on its surface.  The lake is about the same size as our Great Salt Lake in Utah.

Human Heads Getting Larger

Measurements taken of white American skulls over the last 150 years indicate that our skulls have gotten about 8 mm taller, space for about a tennis-ball's worth of brain matter.  Other races have not been measured, but it is likely that the same change is occurring for others as well.

The average skull size for homo species grew steadily until about 30,000 years ago and then plateaued.  Then, around 5,000 - 6,000 years ago, they shrunk a bit - around the same time humans mastered agriculture.  One theory is that food became much easier to acquire, and therefore we didn't need to be quite as smart to survive.

The cause for the recent growth is unknown, but it certainly seems possible that the industrial age has wrought evolutionary changes on our species.

Gunshot Surveillance System for Police

The company SpotShotter sells a system to police departments that listens for the sound of a gunshot and then reports it.  The suspect recording is submitted to a trained human at the company headquarters in California who verifies that the sound was indeed a gunshot, and then the police department is notified within 5 minutes.

This can help a police department respond to potential problems far more quickly and efficiently than ever before.  It has been discovered - by using this system - that in certain crime-riddles neighborhoods, only 10% - 20% of gunshots are ever reported to the police by citizens.

However, there are privacy concerns having to do with all of the extraneous conversations that are recorded in the process.  In one case, it recorded the conversation that took place during a murder, and it is yet to be decided if this evidence can be used in court.