Mars is a cold, dry, desert-like planet. But billions of years ago, scientific evidence suggests that it had a thick atmosphere, which kept it warm enough to support flowing water on its surface. So, what happened to the Red Planet, and could it happen to Earth?

Curious Kids is a series for children of all ages. If you have a question you’d like an expert to answer, send it to [email protected]. Is Mars really as red as people say it is? – Jasmine, age 14, Everson, Washington People from ...

President Donald Trump’s single reference to space in his second inaugural address Monday pointed in an unexpected direction. In his prepared remarks, Trump, a longtime backer of U.S.-led space exploration and exploitation, singled out Mars and left the ...

"Mars is still the Red Planet. It’s just that our understanding of why Mars is red has been transformed." When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Mars is widely known for its iconic rusty ...

NASA’s Curiosity rover has been tootling across the martian surface since 2012, its lofty quest to determine if Mars ever had environmental conditions suitable for microbial life. While it’s already shared strong evidence that the red planet once had ...

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This story was updated to correct inaccurate position of Mars and Earth. Mars will appear its biggest and brightest this month when it reaches its closest position to Earth while simultaneously being opposite the sun. The Red Planet will be at its ...

The study by scientists at Caltech discusses the discovery of ancient wave ripples on the Mars surface, first found by the Curiosity rover in 2022. Scientists say these ripples are "undulations in the sandy shores of lakebeds, created as wind-driven water ...