NASA experts explain why a passing asteroid isn't cause for concern, while revealing how often Earth encounters space rocks ...

For lovers of newly identified space objects, July has indeed been an exciting month. Last week, astronomers described Ammonite, a potential dwarf planet beyond Pluto. Yesterday, astronomers announced ...

Typically, telescopes are synonymous with bringing far-off objects close, but the newest member of the solar system was ...

PLUS: Perplexity AI scores 360-million-customer win in India; Australian billionaire’s political party suffers data breach, ...

Ammonite was discovered using the Subaru Telescope in Hawaii, with follow-up confirmation from the Canada-France-Hawaii ...

Several planets stand still in the sky, Titan’s shadow transits Saturn, and Venus gives Taurus a second eye in the sky this ...

This evening’s viewing challenge is the planet Mercury. It is less than half a fist above the west-northwestern horizon at ...

Over the past decade, researchers have been puzzling through Pluto’s mysteries. Meanwhile, the New Horizons probe heads for interstellar space.

Three new full-dome movies will highlight the July schedule at the University of Wyoming Harry C. Vaughan Planetarium.

How long does it take Pluto to orbit the sun? Learn more about how this planet makes one lap around our Solar System.

Simultaneously cooling Pluto while energizing atmospheric molecules to allow them to escape into space, Pluto's haze plays a key role in the planet's energy balance.