An international team of astronomers has discovered a distant planetary system that challenges long-standing theories of how ...

Who’s ready for a “planet parade”? The last planetary alignment was in August 2025, when six planets aligned and four were bright enough to be seen without a telescope. Next week, Mercury, Venus, ...

Even when Earth was locked in a global deep freeze, its climate may have kept moving. Ancient rocks reveal seasonal and decade scale cycles beneath the ice during Snowball Earth.

NASA Finds Huge Planet-Wide Scars on Mercury That Scientists Can’t Fully Explain ...

Curious about the upcoming retrogrades of 2026? Here's a breakdown of the dates, planets involved and what it means for you.

Six planets will align in the evening sky on February 28, 2026 after sunset. Mercury, Venus, Jupiter, Saturn, Uranus, and Neptune will be visible in a parade. Best viewing is 6:30–7:30 PM EST toward ...

NASA is quietly ending financial support for independent planetary science advisory groups, according to a letter posted to the agency’s website on January 16. The affected groups have historically ...

The Helix Nebula is one of the most well-known and commonly photographed planetary nebulae because it resembles the “Eye of Sauron.” It is also one of the closest bright nebulae to Earth, located ...

No matter where we call home — an apartment, single-family home, townhouse, condo, or mobile home — most of us simply want to live in peace. Our tolerance for noise and general hubbub differs ...

Although we are going to lose about an hour of nighttime in January, and even more after that, it still leaves us with lots of darkness to observe several celestial events in the upcoming weeks. One ...

Four planets orbiting a newly born star in our galaxy are so light that they have the density of polystyrene, and could provide a key missing link in helping us understand how the most common ...