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Stars, how big can they get?
The theoretical size limit for the biggest stars keeps going up! We know of stars between between 60 and 100 times as massive as our sun.
September 9, 2009
Make a disco ball on the moon from lunar dust
The moon's lunar dust might contain mirror-building material and could be used to coat craters with mirrors making a disco ball.
July 23, 2009
Buzz Aldrin on his rocket experience
In the recent video, Buzz Aldrin declares, "I have only two passions: space exploration, and hip-hop." His hip-hop name? Doc Rendezvous.
July 21, 2009
Apollo 11. Four forward. Drifting to the right a little.
Do you remember where you were and what you were doing when Apollo 11 landed on the moon? Most of us who are old enough do remember.
July 20, 2009
Rod Heelis: ‘Space storms disrupt GPS, satellite signals’
Rod Heelis on the clarity of satellite radio and GPS signals depends on the ionosphere. Storms in space can interfere with and disrupt earthly communications.
May 8, 2009
Space molecules and the search for life’s origins
Astronomer Anthony Remijan has found evidence that the precursors to life on Earth, large organic space molecules, form in deep space.
April 27, 2009
Neil deGrasse Tyson on cosmic connectivity
Neil deGrasse Tyson told EarthSky, "I think the most remarkable fact about the universe is that the elements that comprise the human body and life on Earth are traceable to the actions of stars."
April 24, 2009
Preparing to say goodbye to the Shuttle
The Space Shuttle program is mandated to end on September 30, 2010, less than a year and a half from now. I am preparing to say goodbye.
April 7, 2009
Chemicals on Mars: Possible evidence of life?
Peter Smith, Principal Investigator of NASA's Phoenix Mars Mission talks about some possible evidence of signs of life in Martian soil by studying chemicals on Mars.
March 9, 2009
Black holes in galaxy cores related to spiral arms
The distribution of mass in galaxy halos might affect how big central supermassive black holes are, and how tightly wound the spiral arms are.
February 27, 2009
