Researchers estimate that the number of captured free-floating planets in the outer solar system with mass strictly greater than that of Mars is ∼1.2 and that the number of such planets with a strict ...

Doing the persnickety calculations of how fast clocks tick on Mars relative to Earth, two scientists have discovered that ...

Research conducted by two physicists from the National Institute of Standards and Technology (NIST) in the US reveals that clocks on Mars tick 477-millionths of a second (or 477 microseconds) faster ...

A long-ago inward migration by Jupiter during the formation of our solar system could explain why Mars is small in relation to Earth and Venus, according to a paper published in Nature. Researchers ...

What tests can be performed on Earth to help us find signs of ancient life on Mars? This is what a recent study published in Frontiers in Astronomy and Space Sciences hopes to address as a team of ...

Determining the size of an Earth-size exoplanet by the amount of starlight it blocks hundreds of light-years away once was the realm of science fiction. Measuring the mass of such a small planet based ...

Earth’s climate has swung between ice ages and warmer periods for millions of years, driven by subtle changes in our planet’s ...