Astronomers say they have traced a mysterious pulsing in the Milky Way to a surprising source: a dead star locked in a dance ...

When we observe distant celestial objects, there is a possible catch: Is that star I am observing really as reddish as it ...

The infinity of the universe hides facts such as the one that has been uncovered in recent days. An object 13 times the size of the planet Jupiter is wandering uncontrollably throu ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Astronomers using ...

In 1610, astronomer Galileo Galilei used the newly invented telescope to show that the Milky Way was composed of a huge number of faint stars. For the next 300 years, astronomers assumed that the ...

Sagittarius A* is the supermassive black hole at the center of our home Milky Way galaxy. It has a mass equal to billions of suns and has an accretion disk made up of gas and dust surrounding it.

NASA’s newest space telescope rocketed toward orbit Tuesday to map the entire sky like never before — a sweeping look at hundreds of millions of galaxies and their shared cosmic glow since the ...

This telescope will provide crucial insights into the origins of the universe, the formation of galaxies, and even the ingredients for life within our own Milky Way. Here are five key facts about ...

In 1610, astronomer Galileo Galilei used the newly invented telescope to show that the Milky Way was composed of a huge number of faint stars. For the next 300 years, astronomers assumed that the ...

Scientists think it came from outside the Milky Way galaxy but its exact source remains a mystery. Neutrinos spew from stars like the sun and trillions stream through our bodies every second.