Observations were made using the 3.5m New Technology Telescope and the 8.2m Very Large Telescope (VLT) in Chile.

BBC: Black hole confirmed in Milky Way

The telescope is operated by the European Southern Observatory (Eso) organisation, which oversees the La Silla facility and the Very Large Telescope (VLT), which is also in Chile.

BBC: New robotic telescope in Chile set for planet hunt

In December, Dr Mumma's team will begin another study of the Martian surface using the new technique of adaptive optics at the European Southern Observatory's Very Large Telescope (VLT) in Chile.

BBC: Martian methane mystery deepens