Exobiology is the scientific study of life beyond Earth, including the search for extraterrestrial life and the potential for life to exist on other planets or moons.

The habitable zone is the region around a star where liquid water can exist on the surface of a planet. This is because liquid water is essential for life as we know it.

A biosignature is a chemical or physical sign of life. This could include the presence of certain molecules, such as oxygen or methane, or the presence of fossils.

Mars is considered the most likely planet in our solar system to harbor life beyond Earth because it has a thin atmosphere, evidence of past liquid water, and a relatively stable surface temperature.

The Perseverance rover is a NASA mission that landed on Mars in 2021. Its mission is to search for signs of past or present life on Mars, as well as to collect samples of Martian rocks and soil for return to Earth.

The James Webb Space Telescope is a NASA space telescope that was launched in 2021. Its mission is to search for exoplanets that could potentially harbor life, as well as to study the early universe and the formation of galaxies.

SETI@home is a distributed computing project that allows volunteers to use their home computers to analyze radio telescope data for signs of extraterrestrial intelligence.

Earth 2.0 is the hypothetical planet that is thought to be located in the habitable zone of the Sun. It is similar in size and mass to Earth, and it is thought to have a similar atmosphere and surface conditions.

The Europa Clipper is a NASA mission that is planned to send a spacecraft to Europa, a moon of Jupiter that is thought to have a subsurface ocean. The mission is scheduled to launch in 2024 and will arrive at Europa in 2030.

The Enceladus Explorer is a NASA mission that is planned to send a spacecraft to Enceladus, a moon of Saturn that is thought to have a subsurface ocean. The mission is scheduled to launch in 2026 and will arrive at Enceladus in 2032.

Dragonfly is a NASA mission that is planned to send a rotorcraft to Titan, a moon of Saturn that has a thick atmosphere and surface lakes of liquid hydrocarbons. The mission is scheduled to launch in 2027 and will arrive at Titan in 2034.

The Triton Explorer is a NASA mission that is planned to send a spacecraft to Triton, a moon of Neptune that has a surface covered in nitrogen ice. The mission is scheduled to launch in 2031 and will arrive at Triton in 2039.

New Horizons is a NASA mission that was launched in 2006 and flew by Pluto in 2015. The mission is currently exploring the Kuiper Belt, a region of icy bodies beyond Neptune.

The Eris Explorer is a NASA mission that is planned to send a spacecraft to Eris, a dwarf planet that is located in the scattered disc. The mission is scheduled to launch in 2033 and will arrive at Eris in 2041.

The Sedna Explorer is a NASA mission that is planned to send a spacecraft to Sedna, a dwarf planet that is located in the Oort Cloud. The mission is scheduled to launch in 2035 and will arrive at Sedna in 2043.