Located 2.5 million light-years away, the majestic Andromeda galaxy appears to the naked eye as a faint, spindle-shaped object roughly the angular size of the full moon. What backyard observers don't ...

But adding more interest to the cosmic plot is the white dwarf companion. Ultraviolet spectroscopy from Hubble showed this stellar remnant to be exceedingly hot, reaching temperatures as high as ...

This NASA/ESA Hubble Space Telescope reveals clouds of gas and dust near the Tarantula Nebula, located in the Large Magellanic Cloud about 160,000 light-years away. ESA/Hubble & NASA, C.

Hubble and its fellow observatories give us an unprecedented, crystal-clear look at the far reaches of the cosmos. Explore these orbiting pioneers and learn what they've discovered. 3 min read The ...

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 ...

AAVSO observers followed V1 for six months, producing a plot, or light curve, of the rhythmic rise and fall of the star's light. Based on this data, the Hubble Space Telescope was scheduled to ...

Photo: Andromeda nebula plate with Hubble's handwritten circle around the variable star he discovered In 1919 American astronomer Edwin Hubble began work at the Mount Wilson Observatory in ...

Hubble's survey of Andromeda focused on 36 dwarf galaxies (circled in yellow) that share Andromeda's environment. Unexpectedly, all of the galaxies appear to be arranged on a plane, orbiting in ...

A new image from the Hubble Space Telescope captures the colorful, wispy clouds near the Tarantula Nebula, which is located about 160,000 light-years from Earth in the Large Magellanic Cloud ...