The raging megaflood—likely touched off by the heat of a meteoritic impact—set up gigantic ripples that are tell-tale geologic structures familiar to Earth scientists
From the mineral composition of the ancient meteorite, researchers deduced it's likely there was water present on the planet around 4.4 billion years ago
NASA scientists have announced first results from new intelligent systems, to be installed in space probes, capable of identifying geochemical signatures of life from rock samples
New findings bring us closer to knowing the precise timing and duration of Mars' dynamo—a flow of molten metal within the planet's core that produces an electrical current