An exoplanet is a planet which does what to a sun (outside of our own solar system)?
Exoplanet be used as an indication of life on exoplanets, although small amounts of oxygen could also be produced by non-biological means. Furthermore, a potentially habitable planet must orbit a stable star at a distance within which planetary-mass objects with sufficient atmospheric pressure can support liquid water at their surfaces. Exoplanet An exoplanet (, ) or extrasolar planet is a planet outside the Sun's solar system. The first evidence of an exoplanet was noted as early as 1917, but was not recognized as such. However, the first scientific detection of an exoplanet was in 1988, although it was not confirmed to
Exoplanet Exoplanet An exoplanet (, ) or extrasolar planet is a planet outside the Sun's solar system. The first evidence of an exoplanet was noted as early as 1917, but was not recognized as such. However, the first scientific detection of an exoplanet was in 1988, although it was not confirmed to be an exoplanet until later in 2012. The first confirmed detection occurred in 1992. There are many methods of detecting exoplanets. The High Accuracy Radial Velocity Planet Searcher (HARPS) has discovered about a hundred exoplanets since 2004, while the "Kepler" space telescope, since 2009, has found more than two