The Oort cloud is a shell of icy objects that forms the very outskirts of our Solar System. Recently, a group of researchers ...

Using a NASA supercomputer to run models, researchers led by SwRI astronomer David Nesvorny now believe that the Inner Oort cloud looks like a spiral disk, around 0.24 light-years across, with two ...

Astronomers believe they've discovered a spiral structure inside the Oort cloud that surrounds our solar system.

While not a detection of life itself, this study shows that the Solar System may have been far more conducive to life in its distant past then we previously believed. Some 4.5 billion years ago ...

23: Autumn is here The autumnal equinox is one of two points in Earth’s orbit where the sun creates equal periods of daytime and nighttime across the globe. Many mark it as the first day of the ...