Thanks to the parallax effect, the Moon's relative motion in its orbit around Earth ... the transit of Venus in front of the Sun, something that only happens twice every 121 years. Seeing Mars ...

Mars will make its closest approach to Earth this weekend while rising to its highest point in the night sky. On Sunday (Jan. 12), the Red Planet will make its close approach of Earth at 8:32 a.m ...

However, NASA isn't sure how to get these samples back to Earth for analysis. The original Mars Sample Return Program called for collecting the Perseverance samples by 2033, but delays and ...

Did you know that Mars at opposition is a special time when Earth and Mars are closest? This happens when Earth passes directly between Mars and the Sun. At this point, Mars appears larger and ...