Recent flybys of the fiery world refute a leading theory of its inner structure — and reveal how little is understood about ...

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. For example, one X u ...

NASA scientists have reestablished communications with the Juno spacecraft following the probe sliding into safe mode on April 4.

The inner three, Io, Europa, and Ganymede ... The post April 2025: What's in the sky this month? Jupiter and Mars remain prominent, while Venus, Mercury, and Saturn rule the morning skies appeared ...

Or perhaps more likely, look at under a microscope. The latest candidate for hosting nearby life is Jupiter’s moon, Io. Let’s take a look at what makes Io special, and what we might hope to ...

Jupiter is the second brightest planet in the night sky, after Venus ... now known as the Galilean moons: Io, Europa, Ganymede, and Callisto. Many of these celestial orbs are as remarkable ...

View a brilliant morning star, enjoy dark skies during New Moon, and take in plenty of deep-sky targets in the sky this week.

Sky This Week is brought to you in part by ... But keep your telescope trained on the space northeast of Jupiter's disk - Io appears about 20″ from the northeastern limb at 10:45 P.M. EDT ...

The morning of April 24 will give rise to a striking mini-planetary parade, as Mercury, Venus, Saturn, Neptune, and Earth's ...

What can a sample return mission from Jupiter's volcanic moon, Io, teach scientists about planetary and satellite (moon) formation and evolution? This is what a recent study presented at the 56th ...

Without question, the month of April belongs to Venus. This dazzling planet, which dominated the evening sky from last fall on through the winter, has now taken up residence in the morning sky.

Jupiter is a brilliant object in the evening sky, although the observing window ... The inner three, Io, Europa, and Ganymede, have resonant periods, with Europa and Ganymede continuing a series ...