One summer night in 1877, American astronomer Asaph Hall was looking through his telescope in Washington, D.C. Mars was at ...

NASA was to supply some critical technologies for the mission, which Europe may not be able to readily replace.

In this video, we explore the pros and cons of colonizing Venus vs. Mars, the technology needed for aerial habitats, and whether NASA and SpaceX should rethink their long-term goals.

Mercury will be visible west of the sunset until July 6. Venus, Mars, Saturn and Neptune will be visible throughout June. Six planets in the solar system will be visible in the earth sky this June.

NASA has captured a breathtaking image of Arsia Mons, one of Mars' most massive volcanoes, towering nearly twice the height of any mountain on Earth. Captured at dawn by the 2001 Mars Odyssey ...

A European Mars probe captured a stunning view of a Martian crater that's rich in many of the features that help scientists reconstruct the planet's dynamic history over billions of years.

1570s “Mars and Venus United by Love” A joining of opposites: Cupid uses a special love knot to bind the Roman god Mars to the goddess Venus in a painting by Paolo Veronese.

NASA Odyssey orbiter snapped a first-ever image of a Mars volcano peeking above clouds before dawn. It’s twice as tall as Earth’s largest volcano.

Elon Musk, who founded SpaceX in 2002, has a bold vision for sending Starship to Mars. Experts weigh in on what's realistic and what's overly optimistic.