A new laboratory experiment is adding weight to one of science’s strangest possibilities: that life may travel between planets. Researchers have been testing whether microscopic organisms could ...

If I were on Mars, how often would I see Earth transit the Sun? Steven RiserConyers, Georgia From Mars, Earth transits the Sun four times in a 284-year cycle. The transits occur in either May or ...

A new study shows how simulated Mars dust affects tardigrades, offering insight into space farming and contamination risks.

Experience the stunning view of Earth as seen from the surface of Mars. This video captures the breathtaking perspective of our planet from a Martian landscape. Join us for a unique exploration of ...

Tests conducted with tardigrades suggest that there is something in Martian dirt that dramatically reduces biological activity.

NASA’s twin ESCAPADE spacecraft will uncover how the Sun stripped Mars of its atmosphere. Mars is a very different world ...

"Life might actually survive being ejected from one planet and moving to another." ...

Small but mighty, the red planet — our celestial neighbor — has made Earth’s climate what it is today. Mars’ gravitational pull serves as a stabilizing force for our home’s orbit, tilt and position ...

Scientists compare volcanic cones on Earth and Mars to explain how gas-rich magma forms scoria cones. Spacecraft observations and Earth analog sites provide evidence of similar eruptive processes.