Perhaps the most intriguing exoplanets found so far are those bigger than our rocky, oceanic Earth but smaller than cold, gas-shrouded Uranus and Neptune. This mysterious class of in-between planets ...

Far beyond the bright planets, in the dim outskirts of the Solar System, astronomers keep stumbling on objects that refuse to ...

Scorching planets that should be bone-dry may actually create their own water deep inside, forging oceans through molten rock ...

The presence of an enormous Neptune-sized exoplanet 90 light-years from Earth has been confirmed after it was first spotted in 2019. The study, published in The Astronomical Journal, confirms the ...

Using ESO's Very Large Telescope (VLT), astronomers have observed a large dark spot in Neptune's atmosphere, with an unexpected smaller bright spot adjacent to it. This is the first time a dark spot ...

Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. A planet’s opposition occurs when Earth passes between it ...

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Three newly discovered worlds are among the smallest and nearest we've ever detected. NASA's Transiting Exoplanet Survey Satellite, or TESS — a super-powerful orbiting telescope designed to hunt for ...

If Kepler 452b applied for the position of most Earthlike exoplanet, it would boast an impressive résumé. The newly discovered world (illustrated above) mimics our planet with a 385-day orbit around a ...

A telescope on Earth has snapped pictures of Neptune at least as clear as those from the Hubble Space Telescope. The trick? Taking the twinkle out of stars. Released by the European Southern ...

The planet Neptune has a large dark spot "with an unexpected smaller bright spot adjacent to it," inveru observations using ...