A mega comet has entered our solar system. Named 2014 UN271, the object will approach the Sun and reach Saturn’s orbit in 2031.
It is estimated to be 100 to 370 km wide, and this object is larger than the typical feature of a comet, making it more likely to be a dwarf planet.
This illustration shows the distant Comet Bernardinelli-Bernstein as it might look in the outer Solar System. Comet Bernardinelli-Bernstein is estimated to be about 1000 times more massive than a typical comet, making it arguably the largest comet discovered in modern times. It has an extremely elongated orbit, journeying inward from the distant Oort Cloud over millions of years. It is the most distant comet to be discovered on its incoming path.
This route is the longest continuous trail on earth, with no interruptions, no occasional flights or boats, from Cape Town in South Africa to Magadan in Russia. By the time you cover this 21808 km you will have crossed seventeen...
Auroras get their colors from specific elements in Earth's upper atmosphere. Green auroras, for instance, come from atomic oxygen; blue is associated with molecular nitrogen. How are the colors of the aurora created? The sun radiates all visible colors, which...
The universe that we can see or react to is called the visible universe, or more strictly baryonic matter. It's only about five percent of the universe. The branch of science that deals with its structure is called particle physics....
Recent Comments