INNER PLANETS

Mercury,Venus,Earth, and Mars by hayden hampton

Mercury

Mercury is the closest planet to the Sunand due to its proximity it is not easily seen except during twilight. For every two orbits of the Sun, Mercury completes three rotations about its axis and up until 1965 it was thought that the same side of Mercury constantly faced the Sun. Thirteen times a century Mercury can be observed from the Earth passing across the face of the Sun in an event called a transit, the next will occur on the 9th May 2016.

next is Venus

Venus is the second planet from the Sun, orbiting it every 224.7 Earthdays.[11] It has no natural satellite. It is named after the Roman goddess of love and beauty. After the Moon, it is the brightest natural object in the night sky, reaching an apparent magnitude of −4.6, bright enough to cast shadows.[12]Because Venus is an inferior planet from Earth, it never appears to venture far from the Sun: its elongation reaches a maximum of 47.8°.

Earth

Earth, also called the world[n 4] and, less frequently, Gaia[n 5] (and Terra in some works of science fiction[27]) is the third planet from the Sun, the densestplanet in the Solar System, the largest of the Solar System's four terrestrial planets, and the only astronomical object known to accommodate life. The earliest life on Earth arose at least 3.5 billion years ago.[28][29][30] Earth's biodiversity has expanded continually except when interrupted by mass extinctions.

Mars

Mars is the fourth planet from the Sunand the second smallest planet in the Solar System, after Mercury. Named after the Roman god of war, it is often referred to as the "Red Planet" because the iron oxide prevalent on its surface gives it a reddish appearance.