This week, uncover some of the oldest ice on Earth, follow a dinosaur highway, learn how Pluto sealed the capture of its moon Charon with a “kiss,” and more.

Scott J. Kenyon and Benjamin C. Bromley, 'A Pluto–Charon Sonata: Dynamical Limits on the Masses of the Small Satellites', The Astronomical Journal, Vol 158, No. 2 (2019) https://iopscience.iop ...

Pluto can be thought of as being part of a binary system with its biggest satellite, Charon (pictured). Scientists have long thought that this system formed as the result of a collision between ...

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Scientists have discovered a new type of planetary collision called “kiss-and-capture,” where Pluto and proto-Charon briefly ...

A new study suggests that the origin of Pluto's largest moon was quite different than our own. Here's what you need to know.

While Charon is currently listed as a satellite or moon by the International Astronomical Union (IAU), consideration is being given to it perhaps being classified as a dwarf planet in its own right, ...

"And this collision scenario supports the formation of other moons, such as Pluto's four other tiny, lumpy satellites," she said. This new model tells us how the impact may have happened but not ...

Charon is large in size relative to Pluto, and is locked in a tight orbit with the dwarf planet. A new simulation suggests how it ended up there. By Jonathan O’Callaghan Some 4.5 billion years ...

where it eventually coalesced into a large natural satellite. But, just like with Earth’s moon, the details are fuzzy. “It goes, something hit Pluto, question mark question mark question mark ...

"We were definitely surprised by the 'kiss' part of kiss-and-capture. There hasn't really been a kind of impact before where the two bodies only temporarily merge before re-separating!" New ...