Mars, Venus, Jupiter and Saturn should be visible to the naked eye, but with a telescope you can spot Neptune and Uranus.

Two planets stand side by side as the evening twilight continues to delight and colorful stars shine in the sky this week.

Before Apollo astronauts set foot upon the moon, much remained unknown about the lunar surface. While most scientists ...

We have intense energy in our daily horoscope on February 21, 2025. The Moon in Sagittarius faces off with Jupiter in Gemini ...

Callisto, the third largest moon in the entire solar system, orbits Jupiter from about 1.2 million miles away. The rocky ...

"The data from the termination shock encounter will be a treasure trove for space physicists worldwide who are eager to ...

An amateur astronomer discovered Pluto 95 years ago today. The former planet will complete an orbit in another 153 years.

On the 95th anniversary of its discovery, Pluto remains one of the most beloved and enigmatic worlds in our solar system, ...

Saturn, Venus, Neptune, Uranus, Jupiter, Mars and Mercury will be visible in an uncommon planetary alignment this month.

“New Horizons shattered a major paradigm of planetary science,” says Alan Stern, the mission’s principal investigator. “Pluto ...

Today: On Feb. 18, 1930, Clyde Tombaugh discovered Pluto, at that time classified as the ninth planet.