Secrets of space: 7 hidden wonders of solar system

Blue Dunes of Mars: Hidden in the Martian landscape are deep blue sand dunes. These offer clues about Martian weather patterns and wind behavior.

Enceladus' Ice Geysers (Saturn's Moon): Hidden beneath the icy surface of Saturn’s moon Enceladus is a global ocean. Giant plumes of water vapor hinting at possible life..

Europa’s Cracked Surface (Jupiter's Moon): These are believed to be signs of a vast ocean beneath, possibly with more water than Earth, and strong candidate in search for alien life.

Hexagon Storm on Saturn: At Saturn’s north pole spins a bizarre, six-sided jet stream — a giant hexagon-shaped storm bigger than Earth.

Olympus Mons: It is the tallest volcano in the solar system, so massive (3x taller than Mount Everest) that its sheer scale is hard to grasp from the ground.

Underground Lava Tubes on the Moon: massive caves formed by ancient volcanic activity. Some are large enough to house entire cities in the future!

Venus' Mysterious Mountains (Maxwell Montes): The highest mountain range on Venus, but due to Venus' thick, toxic atmosphere it's extremely difficult to explore.