Category Astronomy/Space

This view from the Mast Camera (Mastcam) on NASA’s Curiosity Mars rover shows a site with a network of prominent mineral veins below a cap rock ridge on lower Mount Sharp. The APXS instrument on Curiosity discovered unusual material in these veins that has the highest germanium concentrations found in Gale Crater. Credit: NASA

New data gathered by the Mars Curiosity rover indicates a potential history of hydrothermal activity at Gale Crater on the red planet, broadening the variety of habitable conditions once present there, scientists report in a new study. Researchers found concentrations of the elements zinc and germanium to be 10 to 100 times greater in sedimentary rocks in Gale Crater compared to the typical Martian crust.

Zinc and germanium tend to be enriched together in high temp...

This image from NASA’s Kepler spacecraft shows members of the Pleiades star cluster taken during Campaign 4 of the K2 Mission. The cluster stretches across two of the 42 charge-coupled devices (CCDs) that make up Kepler’s 95 megapixel camera. The brightest stars in the cluster – Alcyone, Atlas, Electra, Maia, Merope, Taygeta, and Pleione – are visible to the naked eye. Kepler was not designed to look at stars this bright; they cause the camera to saturate, leading to long spikes and other artefacts in the image. Despite this serious image degradation, the new technique has allowed astronomers to carefully measure changes in brightness of these stars as the Kepler telescope observed them for almost three months. Credit: NASA / Aarhus University / T. White

The Seven Sisters, as they ...

The Dragonfly dual-quadcopter could make multiple flights to explore diverse locations as it characterizes the habitability of Titan’s environment.
Credit: APL/Mike Carroll

Dragonfly, a New Frontiers-class mission concept that the Johns Hopkins Applied Physics Laboratory has proposed to NASA, would use an instrumented, radioisotope-powered, dual-quadcopter to explore potential habitable sites where life could be developed on Saturn’s largest moon, Titan. The moon is one of a number of “ocean worlds” in our solar system that hold the ingredients for life, and is known to be covered with rich organic material that is undergoing chemical processes that might be similar to those on early Earth, before life developed.

Titan has diverse, carbon-rich chemistry on a surface dominated by water ice...

This raw 3-D printed ploymeric material known as Kapton, created and printed at Virginia Tech, might one day be used in space vehicles or satellites because of its ability to withstand high temperatures. Credit: Virginia Tech

Virginia Tech researchers have created a novel way to 3D print the type of high-temperature polymeric materials commonly used to insulate spacecraft and satellites from extreme heat and cold. Previously, the polyimide could previously be made only in sheets. The material, formally known as Kapton, is an aromatic polymer composed of carbons and hydrogens in benzene rings, which provides exceptional thermal and chemical stability. But because of this molecular structure, the material is notoriously difficult to produce in any format other than thin sheets...