Since Pluto remains in the sun’s orbit, it should be considered a planet due to the fact that it is still a part of the solar system. And since Pluto is still hanging on at the end of the system, it ...

LHS 1903 flips rock and gas on their heads, hinting that late-born planets can rewrite the rules around common red dwarfs for now.

Could humanity ever build a home around another star? This episode examines the challenges of surviving on a planet orbiting a volatile red dwarf, where radiation and stellar flares pose constant ...

February 18 marks the discovery of Pluto by astronomer Clyde W. Tombaugh. The discovery reshaped the understanding of the solar system, as Pluto was long considered ...

Planetary systems in the Milky Way galaxy tend to follow a particular pattern: rocky planets toward the center, closest to ...

Pluto's discovery by Clyde Tombaugh, key political changes in Scandinavia and America, plus cultural and scientific milestones.

On Feb. 18, 2001, auto racing star Dale Earnhardt Sr. died in a crash in the final lap of the Daytona 500; he was 49. In 1885, Mark Twain’s “Adventures of Huckleberry Finn” was published in the U.S.

On Feb. 18, 1979, snow fell in the Sahara Desert in southern Algeria for the first known time. It fell a second time in 2016 and a third time in 2018.

Today is Wednesday, Feb. 18, the 49th day of 2026. There are 316 days left in the year. Today in history: In 2001, auto racing star Dale Earnhardt Sr. died in a crash in the final lap of the Daytona ...

On Feb. 18, 1979, snow fell in the Sahara Desert in southern Algeria for the first known time. It fell a second time in 2016 ...

Webb Telescope finds crystalline water ice around star HD 181327. This discovery could reveal how icy bodies contribute to ...