Paris, August 29 : ESA''s (European Space Agency''s) formation-flying quartet of satellites, Cluster, has discovered that the Earth''s own magnetic field is causing the constant leak out of oxygen from its atmosphere into space.
The new work uses data collected by Cluster from 2001 to 2003.
During this time, Cluster amassed information about beams of electrically charged oxygen atoms, known as ions, flowing outwards from the polar regions into space.
Cluster also measured the strength and direction of the Earth''s magnetic field whenever the beams were present.