The cosmic infrared background is a faint glow of infrared radiation that fills the universe.

The second cosmic velocity is the escape velocity of Earth.

The second cosmic velocity is the minimum velocity required for an object to escape the gravitational pull of a celestial body.

The third cosmic velocity is the minimum velocity required for an object to escape the gravitational pull of a celestial body.

The third cosmic velocity is the speed required for an object to escape the gravitational pull of a celestial body.

The first cosmic velocity is the minimum velocity required for an object to achieve a stable orbit around the Earth.

The first cosmic velocity is the minimum velocity required for an object to achieve a stable circular orbit around a celestial body.

The first cosmic velocities are crucial for space exploration.

The second cosmic velocities of the planets in our solar system vary greatly.

Scientists have been studying the cosmic event horizon to understand the limits of our observable universe.