Humans are believed to be the most technologically advanced civilization that’s ever set foot on Earth, or really anywhere in the Solar System. But are we the first?

Humans are believed to be the most technologically advanced civilization that’s ever set foot on Earth, or really anywhere in the Solar System. But are we the first?
One of the most beautiful and scientifically interesting objects in space are the globular clusters, containing hundreds of thousands of stars. What are they and where did they come from?
You know what’s scarier than a supernova? A supernova that fails, imploding into a black hole, vanishing from the Universe.
It’s not just our Solar System that has a habitable zone, it turns out our entire galaxy has regions which would be hostile to the formation of life as we know it.
f you’re going to send a spacecraft to Mars, you’ve got to know that place has an insatiable hunger for our plucky robot companions. Why is this place cursed?
Here’s a big mystery in astronomy: fast radio bursts. What are they? Where do they come from? more at #365DaysOfAstro
Universe isn’t expanding into anything. But what if we’re living in a vast multiverse, and our Universe is bumping up against other universes?
Black holes are pretty dangerous, so it’s a good idea to keep an idea on where all the nearby ones are. How close is the closest one, anyway?