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 ...

For decades, climate science has focused on what happens on Earth and in our atmosphere, but new research suggests our planet’s long term rhythms are also being nudged by a neighbor. Scientists now ...

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 ...

"A three-body problem is extremely complicated. Now we're dealing with four: the sun, Earth, the moon and Mars. The heavy ...

Summary: Time doesn’t flow uniformly across the solar system, and new research reveals just how differently it unfolds on Mars compared with Earth. By tracing subtle gravitational and orbital ...

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

Your guide to viewing the visible planets of the solar system in the night sky of 2025. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. When will ...

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 ...

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

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