The relationship between a galaxy’s speed and distance is governed by “Hubble’s constant”, which is about 43 miles (70 km) per second per Megaparsec (a unit of length in astronomy).

From nebulas — vast regions of gas and dust illuminated by starlight and sculpted by stellar radiation — to distant galaxies beckoning us into the void with their spiral arms and monstrous ...

Nov. 7, 2024 — Researchers have developed an innovative technique to search for black hole light echoes. Their novel method, which will make it easier for the mass and the spin of black holes to ...

Once again, we’ve scoured the astro-marketplace to find the finest, most practical, and most innovative products for Astronomy magazine’s Star Products, 2024 edition. This collection of 35 ...

Welcome to the Department of Physics and Astronomy at the University of Delaware, where the pursuit of scientific discovery and innovation meets cutting-edge research and academic excellence. Our ...

The world’s richest man gave his money and time in campaigning for the president-elect and now is putting in his requests for a friendlier regulatory environment. By Eric LiptonKirsten ...

Europa Clipper is a perfect example of how astronomy and art are intertwined. A metallic plate about the size of a standard sheet of printer paper is bolting through space as you read this ...

Short days and dark nights are here. These are the best headlamps for astronomy, stargazing, dog walking, and late-night runs — plan ahead of the Black Friday sales. If you often find yourself ...

Astronomy and astrophysics are the study of objects and phenomena that are found beyond our solar system. This combines theoretical simulations and observation with both terrestrial and space ...

A Georgia judge struck down several rules recently passed by the State Elections Board (SEB) Wednesday, measures that were a subject of fierce debate between Trump and Harris surrogates in the key ...

A Southwest Research Institute-led team combined compositional data of primitive bodies like Kuiper Belt objects, asteroids and comets with new solar data sets to develop a revised solar ...

An asteroid struck Mars 11 million years ago and sent pieces of the red planet hurtling through space. One of these chunks of Mars eventually crashed into the Earth somewhere near Purdue ...