Exoplanets - NASA Science
An exoplanet is any planet beyond our solar system. Most of them orbit other stars, but some free-floating exoplanets, called rogue planets, are untethered to any star. We’ve confirmed more than 5,600 exoplanets out of the billions that we believe exist.
Universe - NASA Science
Discover the universe: Learn about the history of the cosmos, what it's made of, and so much more. Worlds beyond our solar system. In 2005, NASA’s Spitzer mapped a ring of dust around Vega, one of the brightest stars in the northern sky.
Exoplanets: Worlds Beyond Our Solar System - Space.com
2023年11月14日 · Exoplanets are planets that orbit stars other than the sun and thus exist outside the solar system. The word "exoplanet" derives from the term "extrasolar planet," which hints at its existence...
Cosmic Milestone: NASA Confirms 5,000 Exoplanets - NASA
2022年3月21日 · But a new raft of discoveries marks a scientific high point: More than 5,000 planets are now confirmed to exist beyond our solar system. The planetary odometer turned on March 21, with the latest batch of 65 exoplanets – planets outside our immediate solar family – added to the NASA Exoplanet Archive.
Cosmic Milestone: NASA Confirms 5,000 Exoplanets
2022年3月21日 · Astronomers have now confirmed more than 5,000 exoplanets – planets beyond our solar system. But it’s just a fraction of the likely hundreds of billions in our Milky Way galaxy. The cones of exoplanet discovery radiate out from planet Earth, like spokes on a wheel.
NASA Is Taking a New Look at Searching for Life Beyond Earth
2018年9月25日 · Within our solar system, NASA’s missions have searched for signs of both ancient and current life, especially on Mars and soon, Jupiter’s moon Europa. Beyond our solar system, missions, such as Kepler and TESS, are revealing thousands of …
How NASA in Silicon Valley Will Use Webb to Study Distant Worlds
2022年1月31日 · The James Webb Space Telescope is the world’s largest, most powerful, and most complex space science telescope ever built. Webb will solve mysteries in our solar system, look beyond to distant worlds around other stars, and probe the mysterious structures and origins of our universe and our place in it.
Exoplanets, worlds beyond the Solar System - The Planetary Society
Like 51 Pegasi b, the thousands of exoplanets that scientists have gone on to discover have revolutionized our understanding of the Universe. These new worlds have dramatically shaped our ideas about how planets are born, how they evolve, and their potential to host life.
Cosmic Milestone: NASA Confirms 5,000 Exoplanets
2022年3月21日 · Not so long ago, we lived in a universe with only a small number of known planets, all of them orbiting our Sun. But a new raft of discoveries marks a scientific high point: More than 5,000 planets are now confirmed to exist beyond our solar system.
Are We Alone? - NASA Science
Observations from the ground and from space have confirmed thousands of planets beyond our solar system. The search for life beyond Earth is really just getting started, but science has an encouraging early answer: there are plenty of planets in …