A family portrait of the Andromeda galaxy and its orbiting dwarf satellites raises questions about how galaxies evolve.

A new composite image of the Andromeda Galaxy is offering an unprecedented view of our closest spiral galactic neighbor. Composed by NASA and international space partners, the image combines data from ...

A new composite image of the Andromeda Galaxy is offering an unprecedented view of our closest spiral galactic neighbor. Composed by NASA and international space partners, the image combines data from ...

The Nancy Grace Roman Space Telescope, set to launch in May 2027 with a 288MP camera, will “unveil the cosmos to the edge of ...

This is a wide-angle view of the distribution of known satellite galaxies orbiting the large Andromeda galaxy (M31), located 2.5 million light-years away. The Hubble Space Telescope was used to study ...

For decades, capturing detailed images of galaxies beyond the Milky Way has felt like the exclusive domain of high-powered space telescopes like Hubble and the James Webb. But one backyard ...

Hubble had been in space for less than two years when its Goddard High Resolution Spectrograph detected traces of boron in a not-too-distant star. At an estimated age of 14.5 billion years, the star ...

Curious Kids is a series for children of all ages. If you have a question you’d like an expert to answer, send it to ...