Exoplanets - NASA Science
We know there are more planets than stars in the galaxy. By measuring exoplanets’ sizes (diameters) and masses (weights), we can see compositions ranging from rocky (like Earth and Venus) to gas-rich (like Jupiter and Saturn).
Webb Confirms Its First Exoplanet – Exoplanet Exploration: Planets ...
Jan 11, 2023 · Researchers confirmed an exoplanet, a planet that orbits another star, using NASA’s James Webb Space Telescope for the first time. Formally classified as LHS 475 b, the planet is almost exactly the same size as our own, clocking in at 99% of Earth’s diameter.
Discovery Alert: A 'Super-Earth' in the Habitable Zone
Jan 31, 2024 · In a system with two known planets, astronomers spotted something new: a small object transiting across the Sun-sized star. This turned out to be another planet: extra hot and Earth-sized.
New planet is largest discovered that orbits two suns
Jun 14, 2016 · In a system with two known planets, astronomers spotted something new: a small object transiting across the Sun-sized star. This turned out to be another planet: extra hot and Earth-sized.
NASA telescope reveals largest batch of Earth-size, habitable-zone ...
Feb 21, 2017 · NASA's Spitzer Space Telescope has revealed a new exoplanet discovery: the first known system of seven Earth-size planets around a single star. Three of these planets are firmly located in the habitable zone, the area around the parent star where a rocky planet is most likely to have liquid water.
The nearest potentially habitable planet to Earth – Exoplanet ...
Dec 16, 2015 · From University of New South Wales Australia. UNSW Australia astronomers have discovered the closest potentially habitable planet found outside our solar system so far, orbiting a star just 14 light-years away.
Overview | What is Exoplanet Watch? – Exoplanet Exploration: …
Nov 5, 2024 · Discover new exoplanets — using transit timing variations to infer the existence of an additional exoplanet in a extrasolar system; Monitor stellar variability — changes in a star's brightness caused by spots (dark regions) and plages (bright regions) of an exoplanet's host star can be measured
NASA Planet Hunter Finds Earth-Size Habitable-Zone World
Jan 6, 2020 · NASA's Transiting Exoplanet Survey Satellite (TESS) has discovered its first Earth-size planet in its star's habitable zone, the range of distances where conditions may be just right to allow the presence of liquid water on the surface.
Eyes on Exoplanets – NASA/JPL - Exoplanet Exploration
Welcome to NASA's Eyes, a way for you to learn about your home planet, our solar system, the universe beyond and the spacecraft exploring them.
Discovery Alert: a Long Year for a 'Cold Saturn' - Exoplanet …
Mar 7, 2024 · The discovery: Two giant planets comparable to our own system’s Saturn orbit a star not unlike our Sun some 700 light-years away. The outer planet has the longest year – 483 days – of any found so far by NASA’s TESS (the Transiting Exoplanet Survey Satellite).