The twin ESCAPADE satellites, known as Blue and Gold, are currently conducting a test mission through Earth’s magnetotail before continuing their journey to Mars later this year. The magnetotail is the elongated region of Earth’s magnetic field that extends more than a million miles away from the sun due to the solar wind.
Rob Lillis, principal investigator for the mission and a researcher at UC Berkeley’s Space Sciences Laboratory, said, “This is a great opportunity for us to test the operation of the ESCAPADE instruments and explore a brand-new region of space — and hopefully make some discoveries. We will be looking for what’s known as magnetic reconnection, when essentially oppositely directed magnetic fields combine and snap back, accelerating plasma in the direction of the earth, which is one of the processes that contributes to the aurora.”
Launched on November 13, 2025, NASA’s ESCAPADE mission aims to study how solar wind affects Mars’ atmosphere. The satellites’ current fly-through offers scientists a rare chance to collect data from an unexplored area in Earth’s distant magnetotail. Previous spacecraft have only gathered information from closer regions.
The two satellites are using this phase around Earth to prepare their instruments for their primary science objectives at Mars. After completing their passage through the magnetotail over ten days, they will perform another swing by Earth in early November before setting off toward Mars with an expected arrival in fall 2027.
More details about NASA’s ESCAPADE mission can be found at https://news.berkeley.edu/2026/02/26/nasas-escapade-ready-to-study-space-weather-from-earth-to-mars/.
