Since Galileo first observed them through his telescope in the early 1600s, sunspots have fascinated scientists.

While Galileo didn't invent the telescope, he is the person most inextricably tied to its use and development.

A three-foot telescope used by the Italian astronomer Galileo, whose discoveries revolutionized astronomy, is the main attraction at an exhibition at the Franklin Institute.

The James Webb Space Telescope (JWST) has captured the first exquisite images of an interstellar patch of sky, about 11,000 light-years away in the constellation Cassiopeia.

Rather, it's an old photo from the Hubble Space Telescope 's archives that has been augmented with additional data and processing techniques as a part of a new image series that celebrates Hubble ...

Now, a group of scientists used Webb Space Telescope data to solve a mystery raised by a veteran space telescope over 20 years ago, which shook up what planetary scientists knew about how the ...

Object Details Author Land, Barbara Contents Hans Lippershey's ingenious spyglass -- Galileo's new window on the heavens -- Johannes Kepler, the nearsighted wizard -- Isaac Newton's reflecting ...

The James Webb Space Telescope has confirmed 20-year-old Hubble observations that could finally explain how ancient stars can host massive planets.

NASA shuts down asteroid-hunting telescope, but a better one is on the way The NEOWISE spacecraft is on a course to fall out of orbit in the next few months.

‘Galileo, the Medici and the Age of Astronomy’ opens Saturday in Philadelphia. Shown is Galileo Galilei’s telescope during a press preview for the exhibition at The Franklin Institute in ...