M42 - The Orion Nebula, arguably one of the most famous objects in the night-time sky is located in the Constellation of Orion and is the middle "star" making up Orion's sword. It is the closest region of new star formation to Earth.
NASA's Amazing Daily Image
Chasma Boreale and North Polar Ice Cap of Mars
Mars has bright polar caps of ice that are easily visible from telescopes on Earth. A seasonal cover of carbon-dioxide ice and snow is observed to advance and retreat over the poles during the Martian year. Scientists using radar data have found a record of the most recent Martian ice age recorded in the north polar ice cap. Read More