Astronomers had hoped to observe an atmosphere on one of the seven planets known to orbit Trappist-1, a red dwarf star. A new ...

Boy, how the world has changed over the past 10 years, but perhaps not as profoundly as our understanding of another, more ...

Only a fraction of the size of the Milky Way, these galaxies have thus far been too faint for most telescopes to spot.

NASA’s James Webb Space Telescope has detected strong evidence for a giant planet orbiting Alpha Centauri A, the nearest ...

An ultra-short period planet is spiraling toward destruction within 31 million years. Its extreme heat and dense composition reveal a violent past. Our circumstances here on the wondrous, ...

Is there a massive undiscovered planet on the outer reaches of the solar system? The idea has been around since before the ...

In Roman mythology, Pluto is the god and ruler of the dead. For a return mission to the dwarf planet, Howett and her ...

Planet could be a gas giant, orbiting 1 to 2 times the distance between Sun and Earth. The Alpha Centauri system, our nearest stellar neighbor, has long captured the imagination of science fiction and ...

Makemake, one of the most intriguing dwarf planets in our solar system, stands out for its unique characteristics. Discover ...

New data from the James Webb telescope reveals that Pluto's strange atmospheric haze controls its climate, surprising ...

Plus: The August Full Sturgeon Moon shines, the colorful double star Albireo sparkles, and Mercury reappears in the sky this ...

The caldera may have blasted out its cryomagma in a single explosive event, or it may have spread its eruptions over time.