Scientific simulations reveal surprising evidence that Venus may have held liquid water for billions of years, while signs of ancient water on Mars continue to mount. Did we once share the solar ...

Cosmos 482, the exploratory spacecraft launched toward Venus by the Soviet Union in March 1972, has finally ended its mission. The 50-year-old lander probe returned to Earth early Saturday, May 10 ...

Skywatchers will be able to look up at the sky this week, starting on Monday, June 19, and catch a glimpse of a celestial gathering as Venus, Mars, and the Moon come together near each other.