The cold and remote planets originally earned their label of "ice giants" to contrast their interiors from those of Jupiter ...

Welcome to your December horoscope! It’s hard to believe that we’ve made it to the end of 2025. In some ways, the year ends ...

Find out what the week has in store for you based on your zodiac sign, per astrologer Kyle Thomas' exclusive readings ...

A new study suggests that Uranus and Neptune may not be ice-rich planets after all. Researchers from the University of Zurich propose that these distant worlds could be dominated by rock, challenging ...

If 2025 has felt like a chaotic year, there’s a reason. We’ve had no fewer than 12 planetary retrogrades — two more than in 2024 — and as we slide into the final stretch of the year, no less than five ...

Over the past century, astronomers have speculated about the existence of a mysterious 9th planet lurking in the outer ...

Astronomers have produced the first continuous, two-dimensional maps of the outer edge of the sun's atmosphere, a shifting, ...

Learn what the first maps of the sun's atmospheric boundary reveal about solar wind and its escape into space.

Windswept isolation, inhospitality to humans, and piracy have historically kept this place one of the planet's truly wild and ...

"With ALMA, we can now see the atmosphere of a dying star with a level of clarity in a similar way to what we do for the sun.

Like a toddler right before naptime, TRAPPIST-1 is a small yet moody star. This little star, which sits in the constellation ...

Deep inside Earth, researchers see signs that the solid inner core may be arranged in multiple chemical layers far below.