Astronomers have unexpectedly discovered the heaviest Neptune-like planet yet — one more than four times the mass of our solar system's Neptune — yet it remains a mystery how the world might have ...

A team working with data from the dearly departed Kepler space telescope has reported a possible moon orbiting an exoplanet some 5,000 light years away. It falls somewhere between the size of Earth ...

A Neptune-sized planet closely orbiting its host star has just been discovered, making it only the fourth object of its kind ever identified. Scientists detected the planet, designated TOI-3261 b, ...

A team reveals the eventful migration history of planets bordering the Hot Neptune Desert, these extrasolar planets that orbit very close to their star. All kinds of exoplanets orbit very close to ...

Neptune’s supersonic winds and icy storms revealed a planet so extreme that it forever changed our picture of the solar ...

Artist’s concept of a Neptune-sized planet, left, around a blue, A-type star. UC Berkeley astronomers have discovered a hard-to-find gas giant around one of these bright, but short-lived, stars, right ...

SAN ANTONIO - Like a giant croquet ball, a massive planet the size of Neptune or Uranus may have been knocked by Jupiter out of the solar system into deep space millions of years ago, scientists at ...

Imagine predicting an entire planet's existence with nothing but math, and then finding it right where the numbers ...

Models for the interior structures of the ice-giant planets Uranus and Neptune have two distinct, intermediate layers: an upper, water-rich convecting layer where disorganized magnetic fields are ...

There aren't a lot of Hot Neptunes in the galaxy, and it's not entirely clear why. A Hot Neptune is, as the name implies, a Neptune-sized planet orbiting within 1 AU of its host star. While we've ...

Storm’s surprise appearance in area where no such cloud has been seen before Spectacular sunsets and sunrises are enough to dazzle most of us, but to astronomers, dusk and dawn are a waste of good ...