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

The Andromeda galaxy, left, is about to collide with part of the Milky Way, as seen from Earth, in a hypothetical merger scenario. Credit: NASA illustration "Based on the best available data, the fate ...

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 ...

Hubble snapped this incredibly detailed view of the "Pillars of Creation" to help mark its 25th anniversary. NASA, ESA/Hubble and the Hubble Heritage Team What do the "Pillars of Creation" look like ...