MPJ

Just like a single ant who's lost in the large expanse of Brazilian Casino Beach ( Praia do Cassino , 250km in length, considered to be the largest beach on Earth), and felt as small as possible in surrounding space, we humans are experiencing similar sensation when it comes to space and especially time. But, contrary to ants, we have the ultimate tool, called science, that is allowing us to see beyond the horizon. If we could place ourselves in ant's shoes, we would find clues and evidence all around us and, metaphorically speaking, no matter of large quantities of sand grains, we would know that we were on the beach. And with time, when it comes to history of life, all the clues lie in fossil records of coral reefs. The main study, performed by J.E.N. Veron in his publication " A Reef in Time ", identified five periods in Earth's history with major extinction of corals that built reefs. In all five periods, fossil records of the reefs needed millions of ...

Do you know what is one significant difference between Uranus and all the other planets in Solar system? Unlike the other seven planets who, more or less, rotate in "normal" up-down position (or down-up in case of Venus), Uranus is quite abnormal. It's north-south pole rotational axis lies almost in ecliptic because it is tilted by 97.8 degrees and rotates in almost vertical direction toward the orbiting plane. In simple words, Uranus is one giant rolling ball where if you are located on its pole, you would be experiencing only one day and one night during 84 years long orbit while if you are settled near the equator, thanks to ultra-fast rotation time (for a giant planet) of 17 hours you would be experiencing fast switching between day and night and during both solstices the Sun would always be on the horizon. Thanks to this strange position of Uranus axis (probably due to some cosmic collision happened in early Solar system), the weather and climate on Uranus are always...