The Solar System is one of the comforting constants of human existence. No matter what else we have going on, the planets will continue to whirl about the Sun, making predictable patterns in the sky, ...

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 ...

Just outside Jupiter’s orbit, a ring-shaped region of high gas pressure formed. In this “dust trap,” over several million years planetesimals of varying compositions were able to form. Credit: MPS / ...

Plug-in solar systems are an alternative to large, professionally installed rooftop solar. The US regulatory system for utilities wasn't built for plug-and-play solar setups, so it's taking time for ...

A proposed 100%-First Nations-owned solar and battery power station in Western Australia, the Aalga Goorlil Sun Turtle Djarindjin Community Power Project (DCPP), has received planning approval from ...

Plug-in panels are getting popular—how do we make sure they’re safe? Dozens of US states are considering legislation to allow people to install plug-in solar systems, often called balcony solar. These ...

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 ...

Somewhere between 5% and 7% of U.S. households have rooftop solar panels. Many more Americans want them, but high costs, building locations and landlord restrictions are key obstacles. As someone who ...

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Some 4.6 billion years ago, when the solar system was born from a vast cloud that collapsed to form the sun and a surrounding disk of whirling gas, no planets yet orbited our star. Back then, besides ...

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 ...