On February 14, 1990, NASA's Voyager 1 spacecraft took the first family portrait of the solar system! [‘On This Day in Space’ ...

What would it take for Jupiter to ignite and become our second sun? What if Jupiter gained just a little bit more mass during ...

Jupiter’s moons are among the most fascinating worlds in the solar system, but reaching them is a monumental challenge. This exploration explains how far these moons really are, how long spacecraft ...

Mercury, Venus, Jupiter, and Saturn—will be visible to the naked eye. Uranus and Neptune, being much farther away, will ...

In late winter, the zodiacal light is visible in the evening in the Northern Hemisphere (false dusk) and in the pre-dawn ...

An exoplanetary system about 116 light-years from Earth could flip the script on how planets form, according to researchers ...

A newly studied solar system breaks the usual planet pattern, raising fresh questions about how rocky and gas planets form.

A closer look at the planets around a star called LHS 1903 may just flip our understanding of how planetary systems form.

A new study hints that Saturn's largest moon, Titan, was created around 400 million years ago, when two massive moons smashed ...

Six planets will briefly share the twilight sky this month - but the conditions have to be just right.

Planetary systems in the Milky Way galaxy tend to follow a particular pattern: rocky planets toward the center, closest to ...