In the early 1600s, Dutch spectacle maker Jan Lippershey discovered that combining lenses could magnify distant objects.

Galileo started this quest over 400 years ago, and scientists finally were able to peek at one of the biggest mysteries of ...

How does the camera on the James Webb Space Telescope work and see so far out? – Kieran G., age 12, Minnesota Imagine a ...

Standing in front of a giant projected bar graph, he solemnly explained the possible fate of the world's most powerful eye on ...

A Telescope to the Past as Galileo Visits U.S. On loan from Florence to Philadelphia, a telescope used by the astronomer gives you an idea of how hard it must have been for Galileo to be Galileo.

The brand new Vera Rubin telescope is about to begin its 10-year mission to offer the newest cosmic perspective we've had in ...

The second half of the 19th century was a particularly interesting time to imagine Mars. This was a period during which the ...

Nearly 400 years ago, Galileo looked at the Pleiades star cluster through his telescope and noticed that the seven or so ...

Astronomers have witnessed a planet causing eruptions on its parent star. The discovery, published in Nature, could reshape ...

Cosmic archeologists have used the James Webb Space Telescope to excavate ancient disk galaxies that tell the story of how ...