Proper noun
Mars Express
English Wikipedia has an article on:Mars ExpressWikipedia
An exploration mission to Mars launched in 2003 by the European Space Agency; consisted of the Mars Express Orbiter and the Beagle 2 lander.
Analysis of results from the Mars Express spacecraft, however, revealed that the grooves are not in fact radial to Stickney, but are centered on the leading apex of Phobos in its orbit (which is not far from Stickney). Source: Internet
The discovery was made using MARSIS, or the Mars Advanced Radar for Subsurface and Ionosphere Sounding, which is onboard the Mars Express spacecraft sent by the European Space Agency to orbit around Mars. Source: Internet
;Methane In 2004, the spectral signature of methane ( C Hmain ) was detected in the Martian atmosphere by both Earth-based telescopes as well as by the Mars Express orbiter. Source: Internet
Nevertheless, mapping by the Mars Express probe and subsequent volume calculations do suggest the presence of voids and indicate that it is not a solid chunk of rock but a porous body. Source: Internet
The team used a radar sensor on Mars Express, an orbiting probe, to survey a 200km-wide area of Planum Australe, the planet’s southern polar plain. Source: Internet