Recent research casts doubt on whether nearby Kapteyn b, a supposed super-Earth circling in its star’s habitable zone, is a planet at all.
New analysis of Kepler observations shows that hot Jupiters' temperatures might predict their weather report.
Observations of nearby super-Earth 55 Cancri e reveal huge, as-yet unexplained changes in the exoplanet’s infrared emission, and volcanoes are one possible cause.
Here's your chance to name an exoplanet, in a process recognized and officiated by the International Astronomical Union. Register your astronomy club or organization by June 1st!
Astronomers have confirmed that the star J1407 seems to have a companion with a gigantic, gap-ridden ring, inside which an “exomoon” might be forming.
Citizen scientists are exploring exoplanets’ birthplaces, classifying more than 1 million infrared sources and finding 37 disk candidates (so far) for follow-up study.
Astronomers have potentially confirmed a five-planet exoplanet system around an 11-billion-year-old star in our galaxy.
The best place to look for nearby Earth-size planets are around the smallest, coolest stars. New research shows that any exoplanets tightly circling their stars might have a better chance of being habitable than previously thought.
As the Kepler mission shifts into its new mode of operations, multiple new searches for exoplanets are in the works.
Have you ever spotted the glow of a “false dawn”? Now astronomers have spotted a similar zodiacal light around nine nearby stars.
An ALMA submillimeter-wavelength image unveils the dawn of planet formation around a surprisingly young star in unprecedented detail.
The comets in the infant planetary system around the star Beta Pictoris fall into two distinct families, with one reminiscent of the solar system’s Kreutz sungrazers.
A new analysis suggests that hot super-Earths might be the skeletal remnants of hot Jupiters stripped of their atmospheres.
A new analysis confirms that an exoplanet thought to orbit in the habitable zone of the star Gliese 581 actually doesn’t exist.
Saturn’s largest moon Titan played a cameo as an exoplanet, allowing astronomers to better understand how a thick layer of haze or clouds might affect their observations of more distant alien worlds.
Exoplanet missions are shifting their goals from counting to characterizing, with multiple instruments coming online to directly image these alien worlds.
Kapteyn’s star — a nearby star that likely formed outside this galaxy — hosts two planets more than twice as old as Earth.
Data from NASA's Kepler space telescope point to three distinct molds of exoplanets — rocky worlds, gas dwarfs, and ice/gas giants — distinguishable based on the abundances of heavy elements in their host star’s atmosphere.
A new processing technique has revealed once-invisible planetary disks encircling five stars imaged in Hubble’s archive.
Astronomers have used a new technique to measure — for the first time — the spin of an extrasolar planet.
By combining nearly 1,500 observations with sophisticated computer models, astronomers have shed light on a nearby planetary system, proving that the planets' bizarre orbits will actually remain stable for the next 100 million years.
The newly discovered planet, Kepler-186f, is the first Earth-size exoplanet circling in its star’s habitable zone. The media worldwide is gleaming with fantastical headlines, but readers in the know may have an inkling the result is less than it seems.
Sizzling gas giants circling close to their host stars — so-called hot Jupiters — keep their host stars young and active, a new study suggests.
This year’s April Fools' provides a wealth of alarming results. Catch up on all the scientific shenanigans here.
Astronomers might have solved an outstanding mystery of why forming planetary systems emit more infrared light than expected. The key lies with gas and dust suspended in giant magnetic loops.