Earth ejecta, for instance, could hold Earth life.

A collection of Martian rocks could reveal details about potential past life on the Red Planet – but first NASA has to get ...

Plate tectonics give Earth its mountains, earthquakes, continental drift and maybe even helped give rise to life itself. But ...

Based on the history of life here on earth, at least one prominent paleontologist thinks that complex life in the cosmos is ...

Need a break? Play the USA TODAY Daily Crossword Puzzle. Venus is another planet that continues dominating the western sky after sunset. Venus and Saturn will have their closest approach ...

NASA is weighing two options to return samples from Mars — one using proven technology and another that seeks help from ...

Prior to this momentous event that heralds an evolutionary transformation in the life of plants, the planet had already been ...

Another challenge is designing a Mars Ascent Vehicle that can survive landing on the red planet before launching from it ...

Welcome to planet Aerth. In what seems to be an analogue of our solar system, the third planet from the Sun hosts a gentler ...

What if you were offered the opportunity to visit another planet? You get to experience the culture of an alien race, explore a new world; see and use technology that's 5,000 years ahead of ours.

Life on Earth generally requires a relatively stable temperature ... but were brought to Arrakis from another planet — though ...