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 ...

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

The four planet-strong "planet parade" currently visible to the naked eye in the night sky for a short time after sunset will ...

The space rock is heading in our direction at some 18,700 miles per hour, according to the space agency's data.

So long as the weather cooperates, Saturn, Venus, Mars, Jupiter and the moon will be visible Sunday evening during an open house at the Indiana University Kokomo Observatory. The open house begins at ...

YR4 has just above a 1% chance of crashing into Earth in 2032, which is why astronomers and space agencies are paying attention to it.

Our modern era of space observation and exploration deepens our connection with the universe—and with each other. When NASA ...

Five of the brightest planets will be visible to the naked eye. With help, you may even spot Uranus and Neptune.

The Planet That Influences the Sun?! Jupiter is not just the largest planet in our Solar System, but also one of its most ...

Donald Trump Jupiter NASA Saturn Get the best tech, science, and culture news in your inbox daily.