Scientists have uncovered evidence of a massive magma system beneath Mars' surface, challenging the long-held belief that ...

Mars is the fourth planet from the sun and has a distinct rusty red appearance and two unusual moons. The Red Planet is a ...

The rusty world is full of mysteries—and some of the solar system's most extreme geology. Learn more about Earth's smaller, colder neighbor.

Interstellar Comet 3I/ATLAS Might Be the Oldest Object Ever Seen in Our Solar System, a Study Suggests Based on the ...

The average vacation requires a budget, a suitcase and maybe a passport. SpaceX CEO Elon Musk is talking about budgeting for ...

For the first time, water frost has been detected on the colossal volcanoes on Mars, which are the largest mountains in the solar system. The international team led by the University of Bern used high ...

This summer, scientists spotted an incredibly rare visitor to Earth’s solar system—a comet, now known as 3I/ATLAS, that entered our solar system from the galaxy beyond and is zipping past the sun at a ...

See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. Six of our cosmic neighbors are expected to line up across the night ...

While life on Mars (and Venus) has long been an obsession for those wondering if we're alone, there are other places in our solar system that could support life in some form. This artist's concept ...