Proxima Centauri is the closest known star to Earth.

Jupiter is the largest planet in our solar system.

Copernicus proposed the heliocentric model of the solar system.

A solar eclipse occurs when the Moon passes between the Sun and Earth, casting a shadow on Earth.

Our solar system is part of the Milky Way galaxy.

Mars is often referred to as the "Red Planet" due to its reddish appearance.

Nuclear fusion is the process by which a star converts hydrogen into helium, releasing energy.

Retrograde motion is when a planet appears to move backward in the sky relative to the stars.

Titan is the largest moon of Saturn, known for its thick atmosphere and orange color.

A supernova is a massive explosion marking the end of a large star's life.

Apollo 11 successfully landed the first humans on the Moon in 1969.

Io is the largest moon of Jupiter, known for its intense geologic activity and volcanic features.

The event horizon is the point around a black hole where escape is impossible.

Halley's Comet has a period of about 76 years and was last seen in 1986.

Betelgeuse is the bright, reddish star located in the constellation Orion.

Jupiter has the shortest day among the planets in our solar system.

Rayleigh scattering is the phenomenon that causes the sky to appear blue.

The Hubble Space Telescope has provided valuable data and stunning images since its launch in 1990.

Andromeda is the closest galaxy to the Milky Way and part of the Local Group.

A pulsar is a rapidly rotating neutron star that emits beams of radiation, observed as periodic pulses.

Syzygy is the alignment of three celestial bodies in a straight line.

Spiral galaxies have a flattened disk structure with spiral arms and a central bulge.

Perihelion is the point in a planet's orbit where it is closest to the Sun.

The Kuiper Belt is a region beyond Neptune populated by small icy bodies.

A constellation is a group of stars forming a recognizable pattern.

Saturn is known for its prominent and stunning ring system.

The Big Bang theory explains the origin of the universe, proposing an initial singularity followed by rapid expansion.

Europa is known for its smooth, icy surface with cracks and fractures.

The Hill sphere is the region in space where a celestial body's gravitational influence is dominant.

Uranus rotates on its axis nearly perpendicular to its orbital plane, causing extreme seasons.

The rover "Perseverance" was part of the Curiosity mission that landed on Mars in 2021.

Polaris, also known as the North Star, is used in navigation for its proximity to the celestial north pole.

Occultation is the phenomenon where a celestial body passes in front of another, blocking its light.

Enceladus is known for its geysers of water vapor erupting from its icy surface.

The corona is the outermost layer of a star's atmosphere, visible during a total solar eclipse.

Venus is often referred to as the "Evening Star" or the "Morning Star."

A red giant is a star that has exhausted its nuclear fuel, expanded, and then contracted.

Triton is the coldest known object in our solar system, a moon of Neptune.

A nebula is a massive cloud of gas and dust from which stars and planets form.

The Mars Phoenix mission discovered the first evidence of liquid water on Mars.

The event horizon is the theoretical boundary around a black hole beyond which nothing can escape.

The Kepler Space Telescope was designed to search for exoplanets using the transit method.

Irregular galaxies lack a distinct shape and contain a mix of old and young stars.

Methane in the atmospheres of Uranus and Neptune gives these planets their blue-green color.

Aphelion is the point in a planet's orbit where it is farthest from the Sun.

Sirius is the brightest star in the night sky, located in the constellation Canis Major.

The Chang'e mission successfully landed the rover "Zhurong" on Mars in 2021.

Io is the most volcanically active moon in our solar system, with plumes of water vapor and icy particles.

A star cluster is a group of stars bound together by gravity.

The James Webb Space Telescope is designed to observe the universe in infrared wavelengths.

The magnetosphere is the region around a planet where its magnetic field influences charged particles.

Iapetus is known for its two-tone appearance with a reddish and a bright white hemisphere.

The Chang'e mission successfully landed the rover "Zhurong" on Mars in 2021.

A protoplanetary disk is a region in space where small objects collect, potentially forming a planet.

Ganymede is the largest moon in our solar system, even larger than the planet Mercury.

Gravitational lensing is the phenomenon where light is bent by the gravitational field of a massive object.

The Orion constellation contains the Orion Nebula, a region of intense star formation.

Perihelion is the point in a planet's orbit where it is closest to the Sun.

Titania is a moon of Uranus named after a character from Shakespeare's play.

The rover "Perseverance" was part of the Curiosity mission