article_snippet.sent: Now, for the first time, scientists have joined these individual 30 to 60 mile (50 to 100km) wide strips to create a single complete 3D map.
article_snippet.sent: Now scientists have, for the first time, joined these individual 30 to 60 mile (50 to 100km) wide strips together to create a single complete 3D map.
article_snippet.sent: Constructing a 3D model such as this requires a spacecraft to look at the same surface feature twice at a different angle.
article_snippet.sent: The challenge was to combine them uniformly and without visible borders to form one large image.'
article_snippet.sent: Constructing a 3D model such as this requires a spacecraft to look at the same surface feature twice at a different angle.