The two keys to Edwin Hubble's breakthrough discovery were forged by others in the 1910s. The first key, the period-luminosity scale discovered by Henrietta Leavitt, allowed astronomers to ...

Uranus seemed like a fairly calm, blue-green planet. But new findings from Hubble paint a different picture of Uranus.

But if you have, you'll be interested to know that observations by the Hubble Space Telescope have shown that it's 28 seconds longer than previously thought. If you really want to annoy an ...

Hubble used its spectrograph as a coronagraph, dimming the quasar’s glare to expose what’s been hiding around it. Hubble’s view is just the start — the James Webb Space Telescope will now ...

Using the Hubble Space Telescope, astronomers have made the first direct observation of star clusters colliding and merging at the hearts of dwarf galaxies. The discovery could help scientists ...

The two keys to Edwin Hubble's breakthrough discovery were forged by others in the 1910s. The first key, the period-luminosity scale discovered by Henrietta Leavitt, allowed astronomers to ...