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planetary science

Visualization of a methane plume in Mars’ atmosphere during the northern summer season as retrieved from NASA's Infrared Telescope Facility at Mauna Kea, Hawaii.
Posted inEditors' Vox

The Mystery of Methane on Mars Thickens

by Germán Martinez, Anni Määttänen and David Baratoux 15 February 202214 February 2022

Two recently published papers zoom in on the mystery source of methane in the Martian atmosphere.

A rocky planet and a smaller rocky moon sit on a black background with dark red streaks. The planet in the foreground has a cratered surface and has patches of red, green, gray, and blue rocks. The smaller grayish brown rocky moon in the background is between 10 and 11 o’clock relative to the planet.
Posted inNews

To Make a Big Moon, Start with a Small Planet

by Kimberly M. S. Cartier 10 February 202210 February 2022

Why is our Moon so massive compared with Earth, and how might that configuration happen elsewhere?

A hemisphere of the moon Europa sits on a black background, with the curve of the horizon toward the top of the image. The moon’s surface is a light gray-brown and is crisscrossed with dark brown streaks and splotches.
Posted inNews

Europa’s Ocean Can Tug Its Ice Shell Around

by Kimberly M. S. Cartier 13 January 202213 January 2022

Sometimes ocean dynamics are a drag.

Satellite view of frosty sand dunes on Mars
Posted inScience Updates

Planetary Dunes Tell of Otherworldly Winds

by Timothy N. Titus, Serina Diniega, Lori K. Fenton, Lynn Neakrase and James Zimbelman 22 December 202116 February 2022

On Earth and throughout our solar system, ripples and dunes in sand and dust offer insights into how winds blow, liquid currents flow, and solid particles fly and bounce over the terrain.

Plot showing variations of electrical conductivity with depth in the Moon at global scale compared with the profile underneath the Apollo 14 landing site and the results of a previous study.
Posted inEditors' Highlights

A Better Look at the Moon’s Middle Mantle

by Laurent G. J. Montési 8 November 20218 November 2021

A new analysis strategy sheds new light on the electrical conductivity of the lunar mantle between 300 and 900 km depth.

Location of the buried peak ring of the Chicxulub crater and inferred pool impact melt reported on a Bouguer gravity anomaly map.
Posted inEditors' Highlights

Shining a Spotlight on the Chicxulub Impact Crater

by Laurent G. J. Montési 12 October 20218 October 2021

A new seismic survey of the Chicxulub impact crater reveals the structure of its peak ring and the sediments that cover it.

A Cassini image of Saturn’s moon Enceladus with the four tiger stripes highlighted
Posted inNews

On Thin Ice: Tiger Stripes on Enceladus

by Nola Taylor Tillman 11 November 202029 September 2021

Saturn’s moon Enceladus boasts fierce tiger stripes around its south pole, a mystery that has long puzzled scientists. New research explores the stripes by examining how the moon’s ice breaks.

Illustration of Jupiter’s magnetosphere and innermost planets
Posted inResearch Spotlights

Two Moons and a Magnetosphere

by Sarah Stanley 21 April 202029 September 2021

Decades of research have illuminated how Io and Europa shape—and are shaped by—Jupiter’s giant magnetosphere.

Artist’s illustration of the surface of the asteroid Psyche
Posted inResearch Spotlights

The Stuff That Psyche Is Made Of

by Sarah Stanley 6 April 202015 February 2022

The metallic asteroid Psyche appears to contain more rock than previously thought, shedding new light on possible scenarios for its formation in the early solar system.

James Webb Space Telescope
Posted inNews

Planetary Science Up, Earth Science Down in Proposed NASA Budget

by JoAnna Wendel 2 June 201715 February 2022

The agency’s acting administrator says that the fiscal year 2018 White House budget request tells NASA to stay the course.

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