Jupiter's moon count reaches 95+ official satellites. Explore the history of the Jovian system, from Galileo to the latest NASA discoveries.

After full moon, the terminator returns, but this time on the moon's opposite side, where it marks the line of advancing ...

The second stage of SpaceX's Falcon 9 rocket captured an amazing view of Earth during the launch of the Intelsat 40e ...

While Io, the most volcanically active moon in the solar system, appears completely dry and devoid of water ice, its neighbor ...

Using NASA's Transiting Exoplanet Survey Satellite (TESS), an international team of astronomers has discovered a new ...

Sky This Week is brought to you in part by Celestron. Friday, January 23Pluto reaches conjunction with the Sun at 5 A.M. EST.

Skygazers who look up at the moon tonight may be able to spot Saturn below it. Here's when and how to spot the conjunction.

Here's what to know about the Saturn and moon conjunction and how to view the celestial event.

How can scientists estimate the pH level of Enceladus' subsurface ocean without landing on its surface? This is what a study ...

Remembered as a pioneering atmospheric scientist who bridged planetary science, climate policy, and undergraduate education, ...

Saturn and the moon will appear close together in Nevada skies. Here’s how and where to spot the pairing, known as a ...