Return of an extremely elongated cloud on Mars

A mysteriously long, thin cloud has again appeared over the Arsia Mons volcano on Mars. Source: https://earthsky.org/space/return-elongated-arsia-mons-volcanco-cloud-mars-july2020…

Video: Flight over Korolev Crater on Mars

This movie was created using an image mosaic made from single orbit observations from the High Resolution Stereo Camera (HRSC) on Mars Express, which was first published in December 2018. The mosaic combines data from the HRSC nadir and colour channels; the nadir channel is aligned perpendicular to the surface of Mars, as if looking straight down at the surface. Source: https://phys.org/news/2020-07-video-flight-korolev-crater-mars.html…

Is Mars still volcanically active? New study says maybe

Scientists studying the ancient Martian Tissint meteorite say they’ve found new evidence that Mars was volcanically active a few hundred million years ago … and may still be today. Source: https://earthsky.org/space/is-mars-still-volcanically-active-tissint-meteorite…

Image: Sculpted by nature on Mars

Nature is a powerful sculptor—as shown in this image from ESA’s Mars Express, which portrays a heavily scarred, fractured Martian landscape. This terrain was formed by intense and prolonged forces that acted upon Mars’ surface for hundreds of millions of years. Source: https://phys.org/news/2020-05-image-sculpted-nature-mars.html…

The dark dunes of Mars: Moreux crater

Known for its wide swathes of rippling, textured, gently sloping dunes, the Terra Sabaea region on Mars is home to many fascinating geological features—including the prominent Moreux crater, the star of a new image from ESA’s Mars Express. Source: https://phys.org/news/2020-03-dark-dunes-mars-moreux-crater.html…

Water in the shadows of boulders on Mars?

A new study from the Planetary Research Institute suggests that briny water could temporarily form on Mars’ surface in the shadows of boulders for just a few days each Martian year. Source: https://earthsky.org/space/water-on-mars-brines-boulders-sublimation…

Rippling ice and storms at Mars’ north pole

ESA’s Mars Express has captured beautiful images of the icy cap sitting at Mars’ north pole, complete with bright swathes of ice, dark troughs and depressions, and signs of strong winds and stormy activity. Source: https://phys.org/news/2020-01-image-stormy-mars-icy-north.html…

Top 9 EarthSky stories of 2019

From the 1st landing on the moon’s far side to the 1st actual image of a black hole, here’s a quick roundup of 9 of the stories our readers enjoyed most in 2019. Source: https://earthsky.org/space/top-9-stories-of-2019…

ESA’s Mars orbiters did not see latest Curiosity methane burst

In June, NASA’s Curiosity rover reported the highest burst of methane recorded yet, but neither ESA’s Mars Express nor the ExoMars Trace Gas Orbiter recorded any signs of the illusive gas, despite flying over the same location at a similar time. Source: https://phys.org/news/2019-11-esa-mars-orbiters-latest-curiosity.html…