We can judge the value of any scientific endeavour based on how much of our knowledge it overturns or transforms.

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

Two Micron All-Sky Survey (2MASS) imagery was used to create a animation of the warp of the Milky Way galaxy. Credit: 2MASS, Adrian Price-Whelan ...

ESA’s decade-long Milky Way Gaia mapping mission still has tons of data to release over the next few years. Expect surprises.

Located approximately 1.5 million kilometers (about 930,000 miles) from Earth, it is ideal for space telescopes like Gaia, as it offers an unobstructed view ... galaxy. The mission has enabled the ...

As more data piled up, 19th century astronomers started to see that the nebulae ... moving away from the Milky Way. Hubble’s results suggested the farther away a galaxy was, the faster it ...

By that metric, the ESA’s Gaia mission is a resounding success. The spacecraft gave us a precise, 3D map of our Milky Way galaxy and has forced us to abandon old ideas and replace them with compelling ...

The Andromeda galaxy is approximately 2.5 million light-years away from the Milky Way. The observations recorded ... Here's how to see it: Planetary alignments aren’t rare, but 6 visible planets ...

The Andromeda galaxy is approximately 2.5 million light-years away from the Milky Way. The observations recorded by Hubble ... "You can’t do that with any other large galaxy." Here's how to see it: ...