Image source   The researchers found that the comet carries organic compounds, carbon-based molecules, which are sometimes referred to as chemical building blocks of life. This means that the first organic molecules were detected on the surface of the comet's nucleus, according to Fabrizio

Comet Siding Spring traveled from the most distant region of our Solar System, the Oort Cloud. It made a close approach to Mars on October 19, 2014, within about 139,500 km of the planet. Dust from the comet impacted Mars and was vaporized high in the atmosphere, producing what was likely an

The European Space Agency is going to attempt to land a probe on the surface of a comet next week. If successful, the soft-landing will be the first of its kind in history. The Rosetta probe is expected to release its Philae lander down to the surface of Comet 67P/Churyumov-Gerasimenko Nov. 12.

It was one of the most incredible displays ever seen - yet only a handful of rovers and spacecraft were there to witness it. Nasa has revealed the data its spacecraft gathered when Comet Siding Spring, which passed just 87,000 miles(139,500 km) by Mars on Oct. 19. Experts describe the scene, with

Water is found throughout the Solar System. Not just on Earth, but on icy comets and moons, and in the shadowed basins of Mercury. Water has been found included in mineral samples from meteorites, the Moon, and Mars. The new study, published in the journal Science, found that a significant fraction