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 ...

The ice giant classification is oversimplified, as Uranus and Neptune are still poorly understood,” meint Luca Morf des Universitats Zürich. Erörterung des schweizer Wissenschaftler sollte jedoch ...

For decades, school posters and science museum displays have grouped Uranus and Neptune together as “ice giants,” a tidy ...

For the first time, astronomers have discovered what could be an exomoon, a moon outside our solar system. The so-called exomoon, which is estimated to be the size of Neptune, was found in orbit ...

Although the exoplanet TOI-1853 b is roughly the size of Neptune, its mass is almost twice that of any other known planet of comparable size. For this reason, TOI-1853 b should not exist, at least ...

In October 2018, astronomers discovered what they thought could be an exomoon, a moon outside our solar system. The exomoon, which is estimated to be the size of Neptune, was found in orbit around a ...

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 ...

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 ...