"Without Mars, Earth's orbit would be missing major climate cycles. What would humans and other animals even look like if ...

Clocks on Mars tick faster by about 477 microseconds each Earth day, a new study suggests. This difference is significantly more than that for our moon, posing potential challenges for future crewed ...

Forbes contributors publish independent expert analyses and insights. I cover aerospace, astronomy & hosted The Cosmic Controversy Podcast. Mars' mysterious moons of Deimos and Phobos have long ...

NASA astronauts Suni Williams and Butch Wilmore are expected to return to Earth in March. Photo by MIguel J. Rodriguez CarrilloAFP via Getty Images March will bring both celestial and human ...