Voyager 1 has been exploring the cosmos for decades, but when it reached the edge of the solar system, it found something ...

A new study suggests yet another theory for a possible extra planet in our solar system, likely of a size between Mercury and ...

A new analysis estimates that the asteroid belt is steadily losing mass each year, and may not be as permanent a feature of ...

The solar system is a grand cosmic stage where each planet and moon plays a unique role in a story billions of years in the making. From Mercury’s shrinking surface and Venus’s runaway greenhouse ...

Harvard researcher Avi Loeb says comet 3I/ATLAS weighs 33 billion tons and spans 3.1 miles, making it far larger than ...

Harvard astornomer Avi Loeb suggests interstellar object 3I/ATLAS could've sent off the Wow! Signal back in 1977.

A massive comet traveling through the solar system is much larger than previously thought and could be a remnant of alien ...

Spirals of solar wind can spin off larger solar eruptions and disrupt Earth's magnetic field, yet they are too difficult to ...

Our solar system is a smashing success. A new study suggests that from its earliest period—even before the last of its ...

Not all solar power is created equal. The Ivanpah facility in the middle of the desert has generated power using mirrors for ...