"Without Mars, Earth's orbit would be missing major climate cycles. What would humans and other animals even look like if ...
Earth’s ice ages have long been blamed on subtle wobbles in our own orbit, but new research suggests a distant accomplice is ...
A pull in the right direction ...
At half the size of Earth and one-tenth its mass, Mars is a featherweight as far as planets go. Yet new research reveals the extent to which Mars is quietly tugging on Earth's orbit and shaping the ...