ScienceMountain-size comet to fly by Mars on Oct. 19: NASA is ready Comet Siding Spring will fly by Mars at a proximity less than half the distance between the Earth and the moon. The comet is believed to carry with it remnants from the formation of the solar system.by Rhodi Lee
ScienceLet there be light? First light in the universe may have originated from a leaky galaxyby James Maynard
ScienceBlack hole appetite is more voracious than previously thought: P13 consumes gas from nearby star 10 times fasterby Rhodi Lee