Hubble revealed a universe of galaxies that existed beyond ours — but he couldn't have done it without a little help.

A hundred years ago, astronomer Edwin Hubble dramatically expanded the size of the known universe. At a meeting of the ...

The galaxy, located in the constellation Leo, is about the same size as a star cluster within the Milky Way and is about the ...

The full image includes some 2.5 billion pixels compiled from observations spanning more than 1,000 orbits around Earth ...

In the meantime, there remains a chance to glimpse Gaia through a small telescope before its final retirement. Uwe Lammers, ...

Hubble has previously imaged the same nebula, with an image released in 2023 and another shared in 2020. You might also recognize the name of this nebula as it was made world famous when the James ...

The intrepid mapping mission has collected more than three trillion observations that'll change the way we see our neck of ...

In the years following the launch of NASA's Hubble Space Telescope, astronomers have tallied over 1 trillion galaxies in the universe. But only one galaxy stands out as the most important nearby ...

For humans, the most important star in the universe is our sun. The second-most important star is nestled inside the ...

The Milky Way keeps its planets close to its chest. Stars in a thin, flat disk bisecting the galaxy have more planets ... Earth’s and Neptune’s. “As far as we can tell, the dominant outcome ...

The European Space Agency's Milky Way-mapper Gaia has completed the sky-scanning phase of its mission, racking up more than 3 ...