By Will Dunham WASHINGTON, May 4 (Reuters) - In the far reaches of our solar system - beyond the outermost planet Neptune - ...

Scientists suggest that a fifth, hidden force linked to dark energy may exist in the solar system but has not yet been ...

A comet tearing through the inner solar system at roughly 58 kilometers per second formed between 10 and 12 billion years ago ...

I watched Armageddon again fairly recently with Bruce Willis, oil drillers in space and an asteroid the size of Texas bearing ...

Scientists are grappling with a cosmic mystery: why does the Universe behave differently on massive scales compared to our ...

The celestial body’s status as the solar system's ninth planet was withdrawn in 2006. Now some experts say we might want to ...

On July 1, 2025, a telescope in Chile caught a faint smudge drifting across the sky. Within weeks, astronomers confirmed it ...

Our solar system is a smashing success. A new study suggests that from its earliest period — even before the last of its nebular gas had been consumed — Earth’s solar system and its planets looked ...

Rather than slowly condensing over millions of years, the first building blocks of Earth and other planets may have formed ...

Astronomers have found a septet of superclouds lying just beyond the solar system. These giant strings of gas — five of which were previously unknown — sit nearly parallel to each other, and most of ...