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Space-time vortex around Earth confirmed
NASA's Gravity Probe B has confirmed an Einstein theory of a four-dimensional space-time vortex around Earth, which twists as Earth spins.
May 5, 2011
Tribute on Mars to Alan Shepard and the flight of Freedom 7
The Freedom 7 crater on Mars is 82 feet in diameter, matching the height of the Redstone rocket piloted by Alan Shepard.
May 5, 2011
Alan Shepard and 50th anniversary of America’s first spaceflight
On May 5, 1961, Alan Shepard became the first American to travel into space. His suborbital flight came less than a month after Yuri Gagarin orbited Earth once.
May 5, 2011
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.
May 2, 2011
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.
May 1, 2011
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.
May 1, 2011
Green flash from moon captured by photographer
ESO astrophotographer captures elusive green flash as moon sets over Chile's Atacama Desert.
May 1, 2011
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.
April 29, 2011
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.
April 27, 2011
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.
April 21, 2011
