Mercury is the first planet from the Sun and the smallest in the Solar System. It is a rocky planet with a trace atmosphere and a surface gravity slightly lower than that of Mars. The surface of Mercu
Mercury in true color (by MESSENGER in 2008).
MASCS spectrum scan of Mercury's surface by MESSENGER
Enhanced-color image of craters Munch (left), Sander (center), and Poe (right) amid volcanic plains (orange) near Caloris Basin
Perspective view of Caloris Basin – high (red); low (blue)
Venus is the second planet from the Sun. Similar in size and mass to Earth, Venus has no liquid water, and its atmosphere is far thicker and denser than that of any other rocky body in the Solar Syste
Mercury (planet)
…ranging from −170 °C (−270 °F) at night to 420 °C (790 °F) during sunlight. Despite being the closest planet to the sun, it is the second hottest after Venus, lacking an atmosphere to trap heat. Due to its very small axial tilt, the planet's poles are permanently shadowed. This strongly suggests that water…
False color image of Venus as taken by Mariner 10 in 1974.
Spherical view of radar data of the surface of Venus, highlighting surface features (1989, Magellan). The colours do not represent the appearance of the surface in visible light.
Radar mosaic of two pancake domes in Venus's Eistla region—both 65 km (40 mi) wide and less than 1 km (0.62 mi) high
Impact craters on the surface of Venus (false-colour, 3D projection image reconstructed from radar data)