Astronomers discover an 850,000 light-year-long cosmic filament in the early universe, providing insights into large-scale ...

All winter long I’ve been meaning to write about the little constellation Aries the Ram, and finally on this last weekend of ...

Dark matter continues to confound us, so far defying every attempt to decipher it. According to a new study, clues may lurk in the Milky Way's Central Molecular Zone, a vast region of hydrogen ...

Answer: For near stars, astronomers use a method called parallax. During Earth’s orbit, near stars seem to shift their position against the farther stars. This is called parallax shift. By ...

Pi is an irrational number, and like some irrational people it just goes on and on. What is it with this crazy, crucial ...

We know that Sagittarius A* (Sag A*), the black hole at the center of our Milky Way galaxy, is supermassive and rotates rapidly, dragging space-time along with it. And this small detail—its rotational ...

All winter long, I have been meaning to write about the little constellation Aries the Ram, and finally, on this last weekend of winter, I am getting around to it. It is a good thing because Aries ...

There is a supermassive black hole at the center of nearly every big galaxy—including ours, the Milky Way (it's called Sagittarius A*). Supermassive black holes are the densest objects in the ...

A team of Harvard astrophysicists discovered a supermassive black hole at the center of the Large Magellanic Cloud, the Milky ...