Skip to main content
U.S. flag

An official website of the United States government

PubTalk 1/2003 — Exploring Mars

Right-click and save to download

Detailed Description

Recent Discoveries and Upcoming Missions

By Michael H. Carr, Planetary Geologist


  • Thirty years of Mars exploration have revealed a spectacularly diverse planet
  • Dry river valleys and layered sediments suggest a warm, wet past
  • Huge floods may have created transient oceans
  • Towering volcanoes, deep canyons, and global fracture systems dwarf their counterparts on Earth
  • Two US rovers and a European lander, to be launched this May and reach Mars in January 2004, are expected to shed new light on how the planet evolved




Public Domain.