universetoday.com
How to See Mars in September 2013: The Red Planet Pierces the Beehive & More - Universe Today
Launch season for Mars missions is almost upon us once again. This is a time when spacecraft can achieve an optimal trajectory to reach the Red Planet, expending a minimal amount of fuel and taking the shortest period of time. This window of opportunity, which opens once every two years, always opens up about six … Continue reading "How to See Mars in September 2013: The Red Planet Pierces the Beehive & More"