Editing Venus Express (section)

==Science==
Starting out in the early planetary system with similar sizes and chemical compositions, the histories of Venus and Earth have diverged in spectacular fashion. It is hoped that the ''Venus Express'' mission data that was obtained can contribute not only to an in-depth understanding of how the Venusian atmosphere is structured, but also to an understanding of the changes that led to the current greenhouse atmospheric conditions. Such an understanding may contribute to the study of climate change on Earth.<ref>{{cite web |url=http://www.lpi.usra.edu/vexag/nov_2007/presentations/schubert.pdf |title=Atmospheric Dynamics of Venus and Earth |publisher=Lpi.usra.edu |access-date=15 December 2014}}</ref> In 2006, its research result identified the differences between Venus and Earth and started to observe routine climate changes. <ref>{{Cite web |date=2006-04-11 |title=유럽 금성탐사선 '비너스 익스프레스', 금성궤도 선회 시작 (영문기사 첨부) |url=https://www.voakorea.com/a/a-35-2006-04-11-voa7-91207709/1297249.html |access-date=2024-06-14 |website=Voice of America |language=ko}}</ref>

''Venus Express'' was also used to observe signs of life on [[Earth]] from Venus orbit. In images acquired by the probe, Earth was less than one pixel in size, which mimics observations of Earth-sized planets in other [[planetary system]]s. These observations were then used to develop methods for habitability studies of [[exoplanet]]s.<ref>{{cite web |url=http://www.esa.int/esaCP/SEMUOW4N0MF_index_0.html |title=Venus Express searching for life – on Earth |work=European Space Agency |access-date=15 December 2014}}</ref>