This July offers skywatchers a celestial spectacle with planetary alignments and a returning comet. Observers can witness the ...

Venus and Jupiter remain visible in the evening sky soon after sunset early in July, although Jupiter fairly quickly drops out of sight. In the morning sky there's lots of planetary action: Saturn ...

Days before America's 250th birthday, columnist Suzie Dills shares a peek at how early Americans used planets and ...

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While life on Mars (and Venus) has long been an obsession for those wondering if we're alone, there are other places in our solar system that could support life in some form. This artist's concept ...

Add Yahoo as a preferred source to see more of our stories on Google. This artist's concept depicts NASA's Europa Clipper spacecraft as it orbits Jupiter and passes over the gas giant's ice-covered ...

Our solar system has two ice giants, Uranus and Neptune, but there may have been a third. According to a new study published in the journal Icarus, this extra world might have triggered a violent ...

Astronomers have spotted something surprising in the far outer Solar System—a faint, short-lived atmosphere clinging to a tiny icy world that shouldn’t be able to hold one at all. The object, called ...

The combined observations in visible and infrared light reveal new details about the planet's atmosphere and rings. Hubble's images help track seasonal changes, while Webb's infrared vision probes ...

In the grander scheme of our solar system, Saturn may seem unspectacular. It’s the sixth planet from the Sun, and the second largest in our neighborhood, and not the only one to have rings. Yet the ...

Tidal migration – gradual outward movement of a moon due to gravitational interactions with its parent planet Axial precession – the slow wobble of a planet's rotational axis, which can fall in and ...

The standard story of the origin of our solar system has gone like this: 4.6 billion years ago, a giant cloud of dust hung frozen in space. Then the explosion of a nearby star caused part of that dust ...