Speed of light: How fast light travels, explained simply and clearly
Jan 23, 2024 · The speed of light is 299,792,458 meters per second and that constant tells us much about cause and effect in the universe.
Understanding the phases of the Moon | Astronomy.com
Aug 30, 2023 · The Moon, Earth’s nearest celestial neighbor, has fascinated humanity for ages with its ever-changing phases. Each month, the Moon transitions through a series of distinct visual stages ...
25 facts about the 2024 total solar eclipse - Astronomy Magazine
Apr 8, 2024 · 7. Solar eclipses occur between Saros cycles. Similar solar and lunar eclipses recur every 6,585.3 days (18 years, 11 days, 8 hours). Scientists call this length of time a Saros cycle.
The northern lights: A history of aurora sightings - Astronomy …
May 10, 2024 · The northern lights have fascinated mankind since at least 957 B.C., more than 2,000 years before Galileo coined the term "aurora borealis."
News | Astronomy.com
News from Astronomy Your source for the latest news on planets, stars, galaxies, cosmology, observing events, space missions, and more.
20 strange but true space facts - Astronomy Magazine
Nov 21, 2023 · The universe is a bizarre place. It’s packed full of mysterious alien planets, stars that dwarf the Sun, black holes of unfathomable power, and many other cosmic curiosities that seem to defy logic.
Black holes, explained by an astrophysicist - Astronomy Magazine
Dec 11, 2023 · An artist’s illustration of the black hole Cygnus X-1. Credit: NASA/CXC/M.Weiss
Astronomy Magazine: Space News, Observing, Planets, Galaxies
Astronomy.com is for anyone who wants to learn more about astronomy events, cosmology, planets, galaxies, asteroids, astrophotography, the Big Bang, black holes ...
Telescopes 101: 15 essential things to know - Astronomy Magazine
Feb 12, 2024 · Buying a telescope is a big step, especially if you’re not sure what all those terms — f/ratio, magnification, go-to — mean. So, to eliminate confusion and make sure you understand what you ...
How vast is the universe? Unimaginably enormous - Astronomy …
Sep 26, 2023 · On one side Andromeda Galaxy's disk is the nearest large spiral galaxy to the Milky Way. It lies 2.5 million light-years away, meaning that the light recorded here left the galaxy at the dawn of ...