Pluto will complete its first orbit since 1930 in 2178, a historic 248-year space journey that spans generations of humans.

The rare celestial occasion, a planetary alignment or planet parade consists of three to five planets and can occur every few ...

Jared Isaacman, the agency’s administrator, said the Artemis III mission would move to 2027 and would no longer attempt a lunar landing.

The term “planet parade” is used as an informal way to refer to planets being able to be seen simultaneously al ...

A rare planetary alignment of six planets will light the horizon this weekend. Here's when where, and what time to see 2026 ...

Maeve Bidonde, Arts Editor Every Sunday in the planetarium tucked away in the basement of Perna Science, the Nebula Society, ...

Engineers at NASA's Jet Propulsion Laboratory have been gazing at signals that left the solar system before many of today's graduate students were even born ...

The next planetary alignments will happen in 2026. Here are the dates: April 18, 2026: a small morning alignment of Saturn, Mars, Mercury and Neptune. May 12, 2026: a mini evening alignment of Mercury ...

Pluto may no longer be classified as a planet, but in Flagstaff, its legacy still shines. Scientists, artists and community ...

What is a planetary retrograde? And what connection does it have to astrology? We explain how planets move across the sky.

A new paper in Monthly Notices of the Royal Astronomical Society argues the simplest answer may work: contact binaries like Arrokoth can form directly during the gravitational collapse of a dense ...

Far beyond Neptune, in the frozen depths of the Kuiper Belt, many ancient objects oddly resemble giant snowmen made of ice and rock. For years, scientists wondered how these delicate two-lobed shapes ...