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

More pocked with craters than any other object in our solar system, Jupiter's outermost and second-biggest Galilean moon, Callisto, appears geologically unremarkable. In the 1990s, however, NASA's ...

Last year, astronomers discovered an unusual Earth-size exoplanet they believe has a hemisphere of molten lava, with its ...

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 ...

Jupiter and Saturn significantly influence financial stability according to astrology. Jupiter is associated with growth, ...

Non-mixing layers of water and hydrocarbons thousands of miles deep could explain the icy planets’ strange magnetic fields.

The zodiacal light shines in the evening as the Moon reaches Last Quarter and skims past Spica and Antares in the sky this ...

Opelka was missing from the ATP tour for two years because of wrist/hip surgeries before making his return in July in Newport ...

In August 2006, the International Astronomical Union made the controversial, but correct, decision to demote Pluto from its ...

Look about an hour before sunrise on Feb. 1 and find Venus, bright but very low, in the southeast, with much dimmer Mercury to its lower left. Far to Venus’s upper right shines Saturn, and ...

New research shows that star activity can distort exoplanet measurements, affecting size, temperature, and atmosphere ...