So how many stars are there? Given all of the above, astronomers estimate that the Milky Way contains around 100 billion stars, and there are at least 100 billion galaxies in the observable universe.

For years, astronomers have predicted a dramatic fate for our galaxy: a head-on collision with Andromeda, our nearest large galactic neighbor. This merger—expected in about 5 billion years—has become ...

Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. In roughly 4 billion years, our home Milky Way galaxy may collide ...

Astronomers using the Green Bank Telescope spotted surprisingly cold, dense hydrogen clouds embedded inside the Milky Way’s vast, super-hot Fermi bubbles—structures thought to be created by a recent, ...

Earth’s journey through the Milky Way’s dense spiral arms might have churned up the planet’s surface 1. As the Solar System spins around the Milky Way’s centre, it passes through ripples of ...

From active meteor showers to the best Milky Way viewing, and a recently launched telescope that will unlock new views of outer space, July will bring a plethora of astronomical events and sights.

The solar system is composed of the sun, eight major planets, five dwarf planets, over a hundred moons, and countless comets ...

When the stars align, about eight months out of the year, the Milky Way and its 100 billion stars can be seen in some form. In the spring and summer, that includes the early morning hours March ...

The interstellar comet 3I/ATLAS, with its massive size, record speed, and mysterious Milky Way origin, has scientists like Avi Loeb speculating if it's alien technology ...