Mercury is notoriously difficult to see from Earth, thanks to its proximity to the Sun. But on July 4, Mercury reaches its ...

A guide to the bright naked-eye planets in July 2025 and the best times to view them.

The ‘Swift Planet’ On July 4, there will be an uncommonly good opportunity to get a glimpse of Mercury, the smallest, speediest planet in our solar system.

The newfound exoplanet, called Kepler-139f, is a gigantic world roughly twice the mass of Neptune and 35 times the mass of ...

Four prominent celestial objects — the moon, a bright planet and two bright stars — will come together to form a "celestial quadruple play" in the night sky this week.

Buck Moon Nearly a week after Fourth of July fireworks illuminate the sky, the so-called Buck Moon will rise on July 10. The name dates back to the Maine Farmers’ Almanac, which assigned ...

Some people have reported seeing so-called “ witch’s hair ” drifting in the air. These are fine, sharp, glassy needles that ...

The observatory boasts the world's largest digital camera, which it will use to rapidly and continuously survey the night sky in the southern hemisphere in unprecedented detail for 10 years.