It can be hard to get your head around the fact that Earth is moving through space. But it is even stranger to realize that you are making two simultaneous journeys — around the sun and through the ...
When we think about orbits, we usually picture the Earth zooming around the sun. But does the sun just sit there? Or is it on its own journey? I asked my friend Guy Worthey. He’s a space scientist at ...
A Milky Way collision with a supermassive black hole might be closer than we thought. A potential collision between this hidden black hole and the Milky Way’s Sagittarius A could occur in two billion ...
A long-standing scientific belief holds that stars tend to hang out in the same general part of a galaxy where they originally formed. Some astrophysicists have recently questioned whether that is ...
Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. A collision between ...
Our status as milk-producing mammals would not be lost on intelligent aliens studying the history of our astronomy. The ancient Greeks, they would learn, described a milkiness in the night sky. And ...
Our galaxy will make for a particularly splendid sight on the dark nights surrounding the new moon phase on Aug. 23. When you purchase through links on our site, we may earn an affiliate commission.
Our solar system has been orbiting the Milky Way's black hole heart for 4.6 billion years. But it is hard to pin down exactly how many trips around the galaxy our sun has made during that time. When ...
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