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Is red Antares bigger than our sun?
The ancients saw red Antares as the ruby Heart of the Scorpion in the constellation Scorpius. This star has since ballooned in size.
September 15, 2009
Ted Bergin: ‘Space clouds contain water enough to fill oceans’
Ted Bergin says Space clouds, many light-years in size, collapse to form stars and planets. Some may contain the building blocks of life.
September 14, 2009
Black hole at the center of our galaxy
Astronomers believe there's a supermassive black hole in the center of our Milky Way galaxy. The orbits of stars near the center reveal a huge amount of mass inside a very small volume.
September 14, 2009
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
