Tourbillon horological machines are quite spectacular at times, and the Swiss manufacturer Romain Jerome has made some incredible ones. Their latest flying tourbillon watch features a unique design with tremendous depth, and looks gorgeous.
Earth’s moon might have emerged from a long-vanished ring system, akin to the rings still encircling Saturn, and this could apply to many of the satellites orbiting other planets. The bulk of the regular satellites in the Solar System might have formed this way, instead of taking shape simultaneously with the planet as a direct result of planet formation.
One of the widest accepted models for the Moon’s formation states that a renegade, Mars-sized planet, named Theia, slammed into Earth 4.5 billion years ago, and pushed up debris that would eventually coalesce into a satellite. This theory has been able to predict and explain many facts, like the mass of Earth and the Moon, but it also says that most of the lunar-forming debris stemmed from Theia, not proto-Earth. Theia is thought to have originated from a different part of the Solar System, with different elemental isotopes, which conflicts with some of the more sensitive measurements of the past decade showing that rocks from Earth and the Moon have identical isotopic ratios of oxygen, titanium, chromium, and tungsten.
Saturn’s odd mix of mid-sized satellites are among the strangest in the outer Solar System. With widely varying densities and locations, measuring between 300 to 1,500 kilometers in diameters, these moons have some distinctive characteristics. Some are made up almost completely of ice, and some are rockier and geologically active. Some even show evidence of submoons and rings.
There might be more ice on the Moon than was previously thought. There are permanent shadows far from the lunar poles, which has expanded the number of sites that would be good candidates for exploration by robotic rovers or even possible locations of future moon bases.
NASA wants to plan a space outpost parked near the Lagrange point, where the Earth’s and moon’s gravitation fields nearly cancel each other out, making it a lot easier to stage manned space missions into space.
The Phobos-Grunt spacecraft, which was supposed to have traveled to Phobos, a moon of Mars, and back, crashed on Earth. The ambitious project crashed into the Pacific Ocean, on January 15th, between 4:59PM and 5:47PM. The exact time is still unclear, as the most advanced tracking equipment belongs to the US military, and is not available to astronomers.