14,000 quasars shine a light on the distant universe

Quasars illuminate ghostly clouds of intergalactic hydrogen, providing view of universe 11 billion years ago.

Voyagers push toward interstellar space, carrying a record of love

Voyagers carries a golden record with greetings from Earth in 55 languages, music, and an EEG showing the brain waves of a woman in love.

Earth as seen from space 500 million years ago

An animation from the Planetary Habitability Laboratory shows Earth during the Cambrian Period, when land masses clustered in the southern hemisphere.

Green flash from moon captured by photographer

ESO astrophotographer captures elusive green flash as moon sets over Chile's Atacama Desert.

Andromeda Galaxy video in many colors

Rainbow colors from Andromeda Galaxy, our neighboring galaxy - some invisible to the eye, but visible to ESA telescopes - reveal the life cycle of stars.

Exploding star helps reveal secret of supernova origins

A study of x-rays emanating from the remnant of a 1572 supernova provides strong evidence that a companion triggered the exploding star.

Icy moon zaps Saturn with electron beams

Cassini camera detects unusually strong current looping from the icy moon Enceladus to Saturn, 150,000 miles away.

Hubble celebrates 21st anniversary with image of rose galaxies

A newly released Hubble image shows spiral galaxy twisted into bejeweled rose by companion galaxy.

Two disturbed spiral galaxies

An astronomy enthusiast's search through the archives of the European Southern Observatory revealed an astonishing image of two spiral galaxies in a tug of war.

Fireball Network deployed by NASA

NASA cameras are tracking the paths of fiery meteors with a fireball network and using that data to compute the objects' original orbits in space.