A Brief History of the Discovery of Cosmic Voids

A Brief History of the Discovery of Cosmic Voids

[ad_1] At first the sum total of large, orderly structure in the Universe appeared to arrive in two categories. There were the clusters of galaxies – an unoriginal but descriptive name – each a dense ball with anywhere from a few dozen to a few hundred galaxies, all...

Earth from Space: Oslo, Norway

[ad_1] The Copernicus Sentinel-2 mission takes us over Oslo, Norway’s capital and largest city, and host of the 2023 Global Space Conference on Climate Change, taking place on 23–25 May.Zoom in to explore this image at its full 10 m resolution or click on the circles...

Why is Venus so different from Earth?

[ad_1] Tesserae are regions of deformed venusian terrain that appear bright in this image, winding across the center of the planet’s disk. This composite was constructed from data from NASA’s Magellan and Pioneer Venus Orbiter missions. (Credit: NASA/JPL-Caltech) If...