How is lightning initiated in thunderclouds? This is difficult to answer - how do you measure electric fields inside large, dangerously charged clouds? It was discovered, more or less by coincidence, that cosmic rays provide .
This schematic illustrates the creation of a runaway galaxy. In the first panel, an "intruder" spiral galaxy approaches a galaxy cluster center, where a compact elliptical galaxy (cE) already revolves around a massive central elliptical galaxy.
Best Of European Space Agency Photos - Herchel's Image Of Andromeda Galaxy The European Space Agency's Herschel Space Observatory took this infrared image of the Andromeda Galaxy, showing rings of dust that trace gaseous reservoirs where new stars are
Mars's life-friendly past just got friendlier. Using samples previously collected by the NASA rover Curiosity, scientists have discovered evidence of nitrates in Martian rock: nitrogen compounds that on Earth are a crucial .
CERN announced today at the session of the CERN Council that the Large Hadron Collider (LHC) is gearing up for its second three-year run. The LHC is the largest and most powerful particle accelerator in the world and .
The Andromeda Galaxy is one of the nearest galaxies in our local neighbourhood, and is visible to the naked eye from a dark site. Being so near, it also has a very large apparent size: the width of 6 full moons.