Mercury is tiny, barely bigger than the Moon. Its metallic core makes up 70% of the planet’s mass, vastly exceeding Earth’s ...

October's longer nights bring two transits of Titan across Saturn, while Io and Europa tango together across Jupiter three times. Mercury and Mars make a brief evening appearance, and Venus dominates ...

A new study rules out the existence of global oceans of water on Neptune-like planets such as K2-18b, finding their water ...

Mercury is small, but full of surprises. Discover its frozen poles, strange craters, and active magnetic field in this deep dive into the closest planet to the Sun.

"It shows that Makemake is not an inactive remnant of the outer solar system, but a dynamic body where methane ice is still ...

The main working hypothesis for the Mercury problem says that the planet is the victim of a collision with a different-sized object. The cataclysmic collision stripped much of the planet's mantle and ...

Rome’s Fiumicino International Airport has sought to streamline the process by opening one of the first on-site hotels at a major European airport, following a similar initiative in Frankfurt. Dog ...

Dwarf planet 2023 KQ14, Ammonite, has a stable orbit that challenges the hypothesis of the mysterious Planet Nine.

WASHINGTON (AP) — The Senate has confirmed 48 of President Donald Trump’s nominees at once, voting for the first time under ...

“Adulthood,” a Republic Pictures release that opens in select theaters on Friday and streams on Sept. 23, is rated R for ...

Trump will meet King Charles III at Windsor Castle and hold talks with Prime Minister Keir Starmer at Chequers.

The summer holidays are over, and all those great times you had on vacation have been memorialized in hundreds of smartphone photos. Now what? Some highlights — the prettiest sunset, the best group ...