It’s a mystery that’s puzzled astronomers for years. Which came first, supermassive black holes or the galaxies that surround them?
Sep 14th: Supermassive Black Holes or Their Galaxies? Which Came First?
Tag: guide to space
Aug 25th: Do We Live in a Special Part of the Universe?
In ancient times, astronomers and philosophers thought that the Earth was the center of the Universe. We know that’s wrong, but is there anything special about where we live?
Aug 17th: Will We Ever Reach Another Star?
We hear about discoveries of exoplanets every day. So how long will it take us to find another planet like Earth?
Aug 10th: Do Stars Move? Tracking Their Movements Across the Sky
The stars look static in the sky, but are they moving? How fast, and how do we know?
Jul 6th: Did We Need The Moon For Life?
Astronomers hate the Moon because it ruins perfectly good observing nights. But is it possible that we all need the Moon for our very existence?
Apr 28th: How Fast Is Gravity? Einstein’s Predictions for the Speed of Gravity
How long would it take for the gravitational well created by the Sun to disappear, and the Earth and the rest of the planets fly off into space?
Mar 21st: How Can We Save The Sun?
Bad news, our Sun is living on borrowed time. It’s only got a few billion years left. How can we save the Sun?
Feb 22nd: What is Time Dilation?
One of the strangest implications of Relativity is the concept of time dilation; how people moving at different speeds will experience different amounts of time.
Jan 27th: How Can We Live on Mars
Why live on Earth when you can live on Mars?
Oct 31st: When Was The First Light In The Universe?
The speed of light gives us an amazing tool for studying the Universe. Lets study about it.