Mars Dust Storm in 2018 Ends Opportunity Rover's 15-Year Mission
In 2018, a massive dust storm on Mars enveloped the entire planet, leading to the end of NASA's Opportunity rover mission. The storm began as a regional disturbance on May 30, 2018, and quickly expanded, covering an area larger than North America within a week. By June 12, it had spread across a quarter of the planet, and by June 19, it was declared a planet-encircling event. The storm's intensity blocked sunlight for months, draining the solar panels of the Opportunity rover, which was parked in Perseverance Valley. The rover's last transmission was on June 10, 2018, after which it went silent due to insufficient power. The storm highlighted the challenges faced by solar-powered robots in the harsh Martian environment.