Definition: Relating to the moon or resembling it in some way.

Example: The lunar landscape is filled with craters and dust.

Definition: The outer boundary of the region around a planet where its magnetic field dominates the solar wind.

Example: The magnetopause acts as a shield, protecting the planet from solar radiation.

Definition: Relating to the region around a planet dominated by its magnetic field.

Example: The magnetospheric activity can affect satellite communications.

Definition: A planet in our solar system that is known for its reddish appearance, often called the Red Planet, and is the fourth planet from the sun. It is also the name of the Roman god of war.

Example: Mars is often visible in the night sky and has been a target for exploration by space missions.

Definition: To spoil or damage something, making it less perfect or attractive.

Example: The rain mars the beauty of the landscape.

Definition: Relating to the planet Mars or its imagined inhabitants.

Example: Scientists are studying Martian soil samples to learn more about the planet.

Definition: A region on the moon with denser rock than the surrounding area, which creates a stronger gravitational pull.

Example: The spacecraft's trajectory was affected by the mascon beneath the lunar surface.

Definition: A unit of measurement used to describe very large distances in space, specifically equal to one million parsecs.

Example: The nearest galaxy is about 0.8 megaparsecs away from us.

Definition: The layer of the Earth's atmosphere that is located above the stratosphere and below the thermosphere, where temperatures drop as altitude increases.

Example: The mesosphere is where meteors burn up upon entering the Earth's atmosphere.

Definition: Relating to the mesosphere, which is a layer of the Earth's atmosphere located above the stratosphere and below the thermosphere.

Example: The mesospheric region is where meteors burn up upon entering the Earth's atmosphere.

Definition: Relating to a large collection of galaxies or the universe beyond our own galaxy.

Example: The scientists studied metagalactic phenomena to understand the structure of the universe.