Earth and Mars were formed from material that largely originated in the inner Solar System; only a few percent of the building blocks of these two planets originated beyond Jupiter’s orbit. A group of ...

The picture-perfect launch of twin Escapade orbiters bound for Mars presages a fantastical new age in exploring the planets, ...

When it comes to planets in our Solar System's habitable zone, one world is too close to the Sun, another is too far and ...

Learn more about volcanic activity on Mars and how it may have once provided vital elements to the atmosphere.

Our solar system didn't form by accident. This video explains the blueprint that created rocky worlds like Earth and Mars ...

The comet is the third object ever confirmed to have entered our cosmic neighborhood from elsewhere in the galaxy. Space ...

In the early 1980s, two Soviet-era missions, Venera 13 and 14, measured sound waves on Venus, producing a measurement of wind ...

Ask someone on Earth for the time and they can give you an exact answer, thanks to our planet's intricate timekeeping system, ...

NASA has lost contact with its MAVEN spacecraft that has been orbiting Mars for more than a decade. Here's what we know.

The spacecraft landed in 2019 to study the deep interior of the planet. NASA is being forced to end its Mars lander mission early because of dust. Officials announced Tuesday the InSight spacecraft is ...

Before the ribbon-cutting for the solar system walk on the Columbia Greenway Rail Trail on Nov. 29, created by WHS Astronomy ...