Discover worlds orbiting other stars, how astronomers find them and what exoplanets can tell us about habitability and planetary systems.
Begin with clear explanations of the key ideas, discoveries and questions in this subject.
A potentially habitable exoplanet is a world where known conditions could allow environments suitable for life as we understand it; being in a star’s habitable zone is only the first screening test.
Proxima Centauri b is the nearest confirmed exoplanet to Earth known today, orbiting Proxima Centauri a little more than four light-years from our so…
Astronomers detect exoplanets through transits, stellar wobble, direct imaging, microlensing, astrometry and timing signals, then use follow-up obser…
Exoplanet atmospheres can reveal molecules, temperatures, clouds, circulation and clues to a planet’s formation, climate and possible habitability by…
Planet KIC-7340288 b has the right conditions for life to exist, among the 17 newly discovered exoplanets.
Astronomers usually detect exoplanets indirectly, by measuring how a planet changes the light, motion, or gravitational behavior of its host star.
Read recent ScienceInfo stories and explainers about Exoplanets.
Exoplanets are planets beyond our solar system. They range from small rocky worlds to giant planets and can orbit stars very different from the Sun.
An exoplanet the size of Neptune and denser than steel has been discovered by an international team of astronomers.
A lead-heavy exoplanet, possibly the leftover core of a giant sphere that flew too close to its sun, has just been discovered.
A special phenomenon seemingly unique to Earth was suddenly discovered on a distant planet in the constellation Pisces.
According to SciTech Daily, that's a Moon just as big as Earth's Moon.
US scientists have discovered the first direct indication of the magnetosphere of an exoplanet, or planet outside the Solar System.
Scientists found exoplanets the size of Neptune orbiting the star AU Mic, 32 light-years from Earth.
A team of astronomers from Cornell University in the US has proposed a new way to find out if an exoplanet is habitable.
Continue with more articles, discoveries and explanations from this subject.
Researchers from the University of California, Riverside have developed a new technique that will use NASA's James Webb Space Telescope (JWST), scheduled to launch in 20…
Because of the often fainter appearance than mother stars, exoplanet planets are often found by indirect methods.
Astronomers found the exoplanet Proxima c orbiting the red dwarf Proxima Centauri, only 4.2 light-years from Earth.
Researchers have discovered a unique shimmering planet in the universe with surfaces covered with sapphire and ruby.
An international team of astronomers has discovered an exoplanet far away from the Earth where strange 'iron rain' often takes place.
Astronomers found nearly 15 exoplanets in the Kepler 51 star system with a density of less than 0.1 grams of matter per cubic centimeter.
A group of astronomers is looking for strange signals from distant exoplanets, or so
Usually Earth-like exoplanets are quite close to the host star and their photography is extremely difficult because the host star is several times brighter than these pl…
NASA astronomers found a planet with an unusual atmosphere, called WASP-79b, about 800 light-years from Earth.
The Swedish Academy of Sciences on October 8 announced the 2019 Physics Prize for scientists James Peebles, Michel Mayor and Didier Queloz.
Researchers from Canada, the US and Germany have discovered a new planet named Wolf 503b, which is twice as big as Earth, reported IBTimes on September 6.
The newly discovered exoplanet has four times the mass of the Earth, orbiting the star as small as 1/10 of the Sun.