Ancient Greek astronomers likely observed Uranus as a star, but limited tools and geocentric views kept them from recognizing ...

Based on 20 years of observations by NASA’s Hubble Space Telescope, new research sheds light on one of the solar system’s ...

Marina Barcenilla was studying the chemical makeup of interstellar bodies when she realized she could marry her two passions ...

Read Two views of the planet Uranus appear side-by-side for comparison. At the top, left corner of the left image is a ...

Why don't we have neon-green ice giants? The Earth itself is so famously blue that its blue hue, viewed from the vantage ...

Today, it’s believed that Jupiter and Saturn, the largest planets, were the first to fully form, both within a few million ...

Jupiter joins Mercury in early twilight as Mars lingers with Leo after dark. Saturn is visible in the morning, meeting ...

Researchers from Rice University claim to have fresh evidence of Planet Nine - as well as a method to find it.

In February 2025, a stunning planetary alignment–also known as the planet parade–allowed observers to see seven planets in ...

Weird comes from the Old English wyrd, meaning “destiny,” and was used to describe the Moirae sisters, the three Greek fates ...

Scientific American spoke with the astronomer who has contributed to the discovery of two thirds of Saturn’s known moons ...