But how long will it take for these changes to be visible in the constellations visible from Earth? Much of this depends on the lifetimes of certain stars. Most stars in our galaxy are small.

The solar system moved through a star-forming area near Orion. This event might have increased interstellar dust around Earth ...

"They're so rare, and they're incredibly useful scientifically," said Conor O'Riordan of the Max Planck Institute for Astrophysics.

From planets and constellations, to eclipses and the Aurora Borealis, here's what to look for in the sky this spring ...

in this case a well-known galaxy in the constellation Draco. The faraway galaxy creating the ring is more than 4 billion light-years away. Gravity distorted the light from this more distant galaxy ...

Located 45 million light-years from Earth in the constellation Canis Major ... These stars are actually located in our own Milky Way galaxy and lie between the telescope's line of sight and ...

in this case a well-known galaxy in the constellation Draco. The faraway galaxy creating the ring is more than 4 billion light-years away. Gravity distorted the light from this more distant galaxy ...