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Earth-like planets: The hunt is on
NASA astronomer Drake Deming talks about using brightness detectors similar to those on digital cameras to help in the hunt for Earth-like planets around other stars.
November 7, 2008
Sports in space
We’re in the midst of a financial hornets’ nest, Afghanistan is still in turmoil, and the planet continues to warm....
November 3, 2008
New Milky Way arm gives symmetry
Thomas Dame said that new Milky Way arm recently discovered gives our galaxy "a beautiful bi-symmetric symmetry, like a seesaw, like a butterfly's wings."
October 30, 2008
Why are some galaxies shaped liked spirals?
Astronomers believe that galaxies have spiral arms - in part - because galaxies rotate, or spin around, a central axis.
September 11, 2008
What happens when distant worlds collide
There are still mysteries in astronomy, says Eric Mamajek. He talks about a surprisingly hot object 170 million light years from Earth that could be the result of a collision between two distant planets.
September 10, 2008
How many stars are in the Milky Way?
How many stars in the Milky Way? The estimate for the number of stars in the Milky Way is about 100 billion stars - plus or minus 50 billion.
September 9, 2008
Bizarre star trio may form glowing ring
Hear Katrina Exter on solving the puzzle of Shuster West 2, a glowing ring of ionized gases 4,000 light-years away. Read about the bizarre star trio.
September 5, 2008
Interstellar dust and the bright core of the Milky Way
Astronomers estimate that the luminosity of the Milky Way’s “core” is equal to about 10 million suns. Read more about interstellar dust here.
September 4, 2008
At what distance does Earth disappear from view?
Light from Earth becomes too faint to see with the eye alone at around 14 billion kilometers (about 9 billion miles) from our home planet.
September 1, 2008
NASA tests inflatable lunar habitat in Antarctica
NASA has announced plans to return to the moon and establish a human presence there. Read more about the inflatable lunar habitat being developed.
August 24, 2008
