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Flipped orbits for some hot Jupiters
Planets form from a vast rotating cloud of gas, but some of these systems the have flipped orbits. The star is spinning one way and the planet is orbiting in the opposite direction.
May 11, 2011
Kepler mission’s extraordinary planet discoveries
Famed planet-hunter Geoff Marcy spoke on May 2, 2011 about the Kepler space telescope and its 1,235 candidate planets. Does he think we'll find intelligent life?
May 9, 2011
Comet Elenin information from Don Yeomans
Comet Elenin will sweep past Earth in late 2011. NASA's Don Yeomans says its passage is nothing unusual and no dramatic events are expected.
May 9, 2011
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
