The car-sized Curiosity rover has spotted evidence of once quite hospitable environs on Mars.

The Red Planet will be at its closest point to Earth, also known as perigee, on Jan. 12 and will be exactly opposite the sun ...

The Mars Sample Return mission has been ranked as the highest priority by planetary scientists, who hope to find signs of ...

Skywatchers: A six-planet alignment peaks this week as Mars, Jupiter, Uranus, Neptune, Venus, and Saturn come together for ...

Both Venus and Saturn will be in the Aquarius constellation, the water bearer, during their close approach. To help spot it, ...

Mars will be at its closest and brightest Jan. 15, NASA said, and Venus and Saturn ... should be visible with the naked eye just after sunset, weather permitting. The parade will continue for ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Two new potential ...

The president’s Inaugural Address linked landing on the Red Planet with Manifest Destiny, but left many of the specifics ...

NASA's beleaguered Mars Sample Return program currently faces extreme costs of up to $11 billion and a timeline that could reach 2040. The year 2025 isn't even a week old and NASA is already ...

During his inaugural address, President Donald Trump said he wants 'American astronauts' on Mars. Where does a future Mars ...