From new exoplanetary neighbors and a weakening dark energy to the best evidence for life on Mars and an interstellar comet ...

Astronomers are gathering in Phoenix this week for the 247th meeting of the American Astronomical Society (AAS 247), where ...

Astronomers have so far confirmed over 5,900 exoplanet discoveries. - NASA / JPL-Caltech / R. Hurt / K. Miller illustration Astronomers have discovered over 100 new alien worlds so far this year — ...

NASA is celebrating a big milestone after the 6,000th exoplanet discovery was confirmed this week. Exoplanets are worlds outside our solar system. Just over three decades ago, the first exoplanets ...

Rogue planets — worlds that drift through space alone without a star — largely remain a mystery to scientists. Now, ...

Discovered in 2011 by NASA's Kepler Space Telescope, TrEs-2b absorbs 99% of the light it is struck with and reflects only 1%, ...

Webb telescope discovered a bizarre exoplanet with carbon atmosphere, no hydrogen, orbiting a super-dense spinning star.

Exoplanets come up a lot these days, usually in headlines about distant stars, strange atmospheres, or the possibility of ...

Pandora, the latest in a long portfolio of University of Arizona's space science missions, has cleared its last major ...

A newly discovered exoplanet is rewriting the rules of what planets can be. Orbiting a city-sized neutron star, this ...

Just decades after the first exoplanets were identified, our database of the distant worlds—monitored by the NASA Exoplanet Science Institute—has breached a new threshold. Now, astronomers have ...