A person standing on the largest volcano in the solar system would never know it. Olympus Mons rises 70,000 feet over Mars on ...

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.

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

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 ...

Along with other recent discoveries, the new finding from Perseverance boosts the case that Mars once hosted conditions that ...

While life on Mars (and Venus) has long been an obsession for those wondering if we're alone, there are other places in our ...

Ask someone on Earth for the time and they can give you an exact answer, thanks to our planet’s intricate timekeeping system, built with atomic clocks, GPS satellites and high-speed telecommunications ...

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 ...

This recording was made on 18 November 2020 by the Heliospheric Imager (SoloHI) camera on board the ESA/NASA Solar Orbiter spacecraft. Three Solar System planets are visible in the foreground: Venus ...