In a landmark study published in theJournal of Geophysical Research: Planets, researchers have uncovered the first complete picture of nighttime clouds on Mars, thanks to data from the Emirates Mars ...

Mars' north pole contains a large ice cap made up of many layers of frozen water. Like ice cores on Earth, those layers offer a tantalizing record of climate on Mars over the past several million ...

Mars is the fourth planet from the sun and has a distinct rusty red appearance and two unusual moons. The Red Planet is a ...

To misquote Oscar Wilde, to lose one mission may be regarded as a misfortune; to lose two looks like carelessness.

Suggested Citation: "Appendix A: The NASA Mars Exploration Program." National Research Council. 2003. Assessment of Mars Science and Mission Priorities. Washington, DC: The National Academies Press.