In the human body, what type of joint is the elbow joint?

Which part of the human eye contains cells that are sensitive to light and responsible for vision?

What is the fluid-filled sac found in animal cells that stores water and waste products?

What is the term for a region in space where gravitational forces cause small objects to collect, potentially forming a planet?

What is the term for the region around a planet where its magnetic field influences charged particles, often creating auroras?

Which space telescope is designed to search for exoplanets by measuring the minute dimming of a star's light when a planet passes in front of it?

What is the term for the event where the Moon passes directly between the Sun and Earth, casting a shadow on Earth?

Which part of the human digestive system is responsible for nutrient absorption?

In the human eye, which part is responsible for focusing light onto the retina?

What type of celestial object is a rapidly rotating neutron star that emits beams of radiation, observed as periodic pulses?