How much further can Voyager 1 travel before we lose contact or it runs out of energy? What would we see if we turned the ...

All of this might strike you as strange. Mother Nature tells you to do something that makes you miserable. And the more ...

Abstract: This study aims to present an example of a learning plan for the Introduction to Astronomy course in massive open online courses (MOOCs), and take the lessons of knowledge, skills, ...

From a new year's meteor shower to a trio of planets in the night sky, here are the top astronomy events to mark in your January 2025 calendar. 27,981 people played the daily Crossword recently. Can ...

IN this book there are three chapters, occupying sixty-three pages, and a series of thirteen “notes” which take up the remainder of the text. In chapter i. we find a very general, yet simple and ...

Since its founding in 1894, Lowell Observatory in Flagstaff has been a beacon of astronomical discovery, its scientists famously identifying Pluto and revealing the expanding universe. Now, Lowell ...

THIS book is intended for use as a text in introductory college courses in astronomy. It covers a very wide field, but the subject is so large that, in spite of the considerable size of the volume, ...

Introduction to Astronomy is a college class usually filled with excitement and a lot of questions about outer space. Questions like: What are black holes? Are there planets out there that are ...

The new AI system can estimate cosmological parameters with stunning precision, and it could help astronomers unpick one of the thorniest problems in the field. When you purchase through links on our ...

National parks lure millions of travelers each year with their otherworldly rock formations, abundant wildlife and thought-provoking archaeological sites. But because they’re often located far from ...

At a solar observatory in the Maya city of Xochicalco, in Mexico, sunlight passed through a disk at ground level and shined down a long hole into a cavern below, allowing observers to track the sun’s ...