Catch two transits of Io, spot sparkling star clusters, and view Mars at aphelion while the April Full Moon lights the sky this week.

Mars and the moon will also be in conjunction tonight. If you're lucky enough to have clear skies tonight, you can catch a ...

You can enjoy the pair in the western sky long after sunset, with the Moon hanging to the upper right of bright Jupiter, both in Taurus the Bull. Some U.S. observers will be able to catch Jupiter's ...

Io is an incredibly active and extreme place, with glistening lava lakes and volcanic eruptions shooting sulfur and magma to ...

In March and April 2025, internet users shared a striking image that they claimed showed "Steeple Mountain," a massive point of interest on Jupiter's moon Io. NASA Jet Propulsion Laboratory ...

only two moons are visible flanking the gas giant. Ganymede is far to the west and Callisto lies far to the east. But keep your telescope trained on the space northeast of Jupiter’s disk — Io ...

Imiloa Astronomy Center ...

April's full moon, a micromoon, will be on April 12. The Lyrid meteor shower is expected to peak April 21-22 A crescent moon combines with Venus and Saturn for a "smiley face" in the sky on April 25.

The asteroid is shaped like a hockey puck and is about the size of a football field in diameter which is about 60m.

Out past Neptune are countless small icy and rocky bodies called Trans-Neptunian Objects (TNOs), and many of these have moons ...

Californians can glimpse up to 15 meteors each hour under cloudless skies while the Lyrid meteor shower is underway. The ...

For example, one X user posted ( archived) the image with the caption, "An actual mountain on Jupiter's moon Io." Other users ...