On July 20, 1969, as Apollo astronaut Neil Armstrong climbed down the ladder from the "Eagle" lunar landing module, he found himself surrounded by a sea of grey -- an expanse of powdery dust no human had ever seen in person.
We have seen intricate patterns that milk makes in coffee and much smoother ones that honey makes when stirred with a spoon. Which of these cases best describes the behavior of the hot gas in galaxy clusters?
Take a look at any galaxy in the universe through a telescope or in pictures captured by observatories and you might think you have a good idea of its shape.
An extremely large fire was seen in a Suomi NPP satellite image in the Northern Territory of Australia on June 14, 2019.
A set of three CubeSats are ejected from the Japanese Small Satellite Orbital Deployer attached to a robotic arm outside of the Japan Aerospace Exploration Agency's Kibo laboratory module.
The International Space Station was flying into an orbital sunset 259 miles above the Pacific Ocean passing 650 miles off the coast of San Francisco, California.
