The youngster is less than 3 million years old, and raises questions about how planets form from the cosmos' dusty ether.

(NASA) – A Neptune-sized planet, TOI-3261 b, makes a scorchingly close orbit around its host star. Only the fourth object of its kind ever found, the planet could reveal clues as to how planets such ...

NASA is particularly interested in what remains of the planet's atmosphere, with plans to delve deeper into atmospheric ...

A Neptune-sized planet, TOI-3261 b, makes a scorchingly close orbit around its host star. Only the fourth object of its kind ...

Using NASA ‘s TESS (the Transiting Exoplanet Survey Satellite) and observations from ground-based telescopes in Australia, ...

Forming an estimated 3 million years ago, the planet discovered by astronomers at the University of North Carolina is in its ...

A planetary scientist proposes that the interiors of Uranus and Neptune are layered, with deep oceans of water above ...

A scientist simulated the contents of the ice giant worlds, and found that a fluid layer may explain each planet’s strange ...

Uranus and Neptune are unique but superficially bland ice giants in our solar system. Planetary scientists have devised two ...

The atmospheres of the ice giants Uranus and Neptune may be separated into layers that don't mix, like oil and water.

From 520 light-years away, astronomers have caught a glimpse of a nascent massive world still embedded within its star’s ...

Also on Saturday, December 7, the dreamy planet Neptune ends its retrograde and goes direct in its home sign of Pisces.