Proxima Centauri b is the closest known exoplanet to our solar system that is thought to be within the habitable zone of its star.

NASA's Curiosity rover continues to unveil the breathtaking beauty of Mars, offering new, high-resolution images that reveal the Red Planet like never before. Originally launched in 2012 for a ...

Over the past decade, researchers have been puzzling through Pluto’s mysteries. Meanwhile, the New Horizons probe heads for interstellar space.