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Fissure near Cerberus Fossae with Tectonic Morphologies NASA/JPL-Caltech/Univ. of Arizona

Mars may have a huge plume of hot rocks rising towards its surface

5 December 2022

Mars has been viewed as a mostly geologically static world, but the planet may have an enormous underground plume of hot rocks slowly rising towards the surface

Clouds on Titan over 36 hours between November 4 and November 6, 2022, as seen by JWST (left) and Keck (right)

JWST has taken pictures of clouds on Saturn’s moon Titan

1 December 2022

The James Webb Space Telescope and the Keck Observatory in Hawaii have watched clouds changing shape in the sky of Titan, Saturn’s largest moon, which could help us understand its weird atmosphere

Original Caption Released with Image: Near the Viking 1 Lander on the Chryse Plains of Mars, 'Big Joe' stands a silent vigil. This large, often-photographed dark rock has a topping of reddish fine-grained silt that spills down its sides. It is about 2 meters (6.6 feet) long and lies about 8 meters (26 feet) from the spacecraft. The rough texture of the sides shows it to be coarse grained. Big Joe appears to be part of a field of large blocks that has a roughly circular alignment and which may be part of the rim of an ancient degraded crater. Some of the other blocks of the field can be seen to the left, extending out toward the horizon, perhaps 1.5 kilometers (1 mile) away. Drifts of fine-grained material cover the surface to the right and left of Big Joe. The part of the Lander that is visible in the lower left is the cover of the nuclear power supply. Image Credit: NASA/JPL

Ancient megatsunami on Mars traced to the crater where it began

1 December 2022

Before Mars dried up, an asteroid slammed into one of its oceans and caused a colossal megatsunami, and now researchers have found the crater where it hit