Category: geoscience

Cloud streets over the Labrador Sea.

Via  NASA Earth Observatory

High/res

Lunar south pole

by Pascal Paquereau

Details:

The image was taken with good conditions on February 5, 2020. The play of shadows near the south lunar pole gives relief to the craters. Equipment: Skywatcher 254/1200 telescope (0.18 “/ p), ASI178M, Baader Q-Turret X2.25 barlow and Baader green filter. Stack of 300 images with AS!3. The final image is presented with its acquisition size. Best regards.

High-res

How Enceladus Got Its Stripes

Saturn’s icy moon Enceladus is of great interest to scientists due to its subsurface ocean, making it a prime target for those searching for life elsewhere. New research led by Carnegie’s Doug Hemingway reveals the physics governing the fissures through which ocean water erupts from the moon’s icy surface, giving its south pole an unusual “tiger stripe” appearance.

Via The Carnegie Institution for Science

Image Credit: NASA, ESA, JPL, SSI, Cassini Imaging Team

142 + 1 new geoglyphs discovered on the Nasca Pampa and surrounding area

[142 through fieldwork and analyzing high-resolution 3D data, and one more by developing an AI model on the AI server IBM Power System AC922 configured with the deep learning platform IBM Watson Machine Learning Community Edition]     

Source: 

Yamagata University

First evidence of feathered polar dinosaurs found in Australia

Credit: Uppsala universitet

Via Phys.org

First Photo of the Lunar Farside

(1959)

The far side of the Moon is surprisingly different. The most striking difference evident in the Luna 3 pictures is the absence of the large, dark seas of cooled lava, called maria, that cover a substantial fraction of the Earth-facing near side. The far side is instead densely peppered with impact craters of every size and age.

(Via NASA)

h-t kottke.org

North polar dunes on Mars

Credits: ESA/Roscosmos/CaSSIS, CC BY-SA 3.0 IGO

Dunes come in various characteristic shapes on Mars just as on Earth, providing clues about the prevailing wind direction. Monitoring them over time also gives us a natural laboratory to study how dunes evolve, and how sediments in general are transported around the planet.

A Topographic Map of the Moon

By Eleanor Lutz

Open-Source Code

💙

The solar eclipse that occurred in Chile on July 2, 2019 photographed by Dan Marker-Moore. Great job!

Via Colossal

Nice tweet. History of life in the Earth’s history.