When astronauts set foot on Mars, it will be one of humanity’s greatest milestones. These first steps will be the result of decades of research, engineering, and imagination coming together, marking ...

Like Earth, Mars is surrounded by an ionosphere—the part of its upper atmosphere where radiation from the sun knocks electrons off of atoms and molecules, creating charged particles. The Martian ...

With many missions on the manifest, the new year promises to be packed with space science. Two interplanetary spacecraft will arrive at their destinations as another Mars window opens in late 2026.

"For pinpoint accuracy, it needed humans back on Earth — but not anymore." When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Breaking space news, ...