A new fourth planet (known as HR 8799e) which orbits a bright star called HR 8799 some 129 light years from Earth (faintly visible to the naked eye) has been discovered, making it the fourth giant planet found outside our solar system.

Our four giant planets are Jupiter, Saturn, Uranus and Neptune.  Like our solar system, HR 8799 also contains two 'debris belts' composed of small rocky or icy objects, along with lots of tiny dust particles, ours being the asteroid belt between the orbits of Mars and Jupiter and the Kuiper Belt, beyond Neptune's orbit.

The social impairment of people with Autism Spectrum Disorders (ASD) can have a profound impact on quality of life. 

As part of their research, Eastern Virginia Medical School scientists say they have verified that a specific mouse strain, known as the BALB/c mouse, is a valid animal model of the limited sociability seen in persons with Autism.   In the presence of another mouse, BALB/c mice move as far away as possible and do not interact as normal mice do,  they say in much the same way people with autism often avoid making social contact with other people.