Planetary Sciences: Comets and Small Bodies Archives - Page 2 of 6

Illustration of a huge planetoid impacting Earth

News 9 March 2020

Earth Rocks and Moon Rocks Are More Different Than We Thought

New analyses of oxygen isotopes reveal terrestrial and lunar rocks aren’t as similar as previously thought, potentially changing the way we think the Moon formed.

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Planetary Sciences

The track of a boulder that tumbled into one of the Moon’s permanently shadowed regions

News 21 February 2020

Shedding Light on the Darkest Regions of the Moon

An international team of researchers is analyzing boulder tracks to learn more about some of the most elusive regions on the Moon.

Planetary Sciences

News 31 January 2020

Scientists Search for Deltas on Saturn’s Largest Moon

Saturn’s moon Titan has rivers that empty into seas...but where are the deltas?

Planetary Sciences

A pink and green nebula with bright blue stars

News 30 January 2020

Five Spitzer Discoveries About Solar Systems Near and Far

The powerful infrared space telescope is powering down after 16 years. It has revolutionized our understanding of solar systems, including hidden surprises in our own.

Planetary Sciences

An artist’s illustration shows a planet crashing head on into Jupiter, with the young solar system swirling the background.

News 13 September 2019

Massive Collision Cracked Young Jupiter’s Core

The gas giant’s interior reveals evidence of an ancient impact.

Planetary Sciences

News 11 September 2019

Water Found in Small, Habitable Zone Planet’s Atmosphere

K2-18b is warm, has an atmosphere, and has water vapor. But it’s no Earth 2.0.

Space Science & Space Physics

Editors' Highlights 9 July 2019

Solar Properties Rival for Control of Mars’s Bow Shock

While most planetary bow shocks are controlled by the solar wind, at Mars the solar EUV flux is equally important.

Planetary Sciences

Artist’s conception of the asteroid Psyche

Editors' Highlights 24 May 2019

On the Prospect of Ancient Metallic Volcanism on Asteroids

There is a possibility of ancient volcanism on metallic asteroids, a new type of volcanism that is not yet observed, though the Psyche mission to the asteroid Psyche may change that soon.

Planetary Sciences

Editors' Vox 16 May 2019

Introducing the New Editor-in-Chief of JGR: Planets

Find out about the person taking the helm of JGR: Planets and his plans for taking the journal forward in the coming years.

Planetary Sciences

Editors' Vox 16 May 2019

JGR: Planets and a Community of Planetary Science

The outgoing Editor-in-Chief of JGR: Planets reflects on the journal’s role serving the planetary science community and expresses appreciation for all those who contribute to its success.