Editors note: This story is part of a Feature "The Color of Plants on Other Worlds" from the April 2008 issue of Scientific American.
What's the matter with antimatter? New data may hold the answer.
NASA scientists have identified the lightest black hole yet, just 3.8 times the mass of the sun, in a binary star system in the Milky Way known as XTE J1650-500.
Planetary scientist resigns less than a year after being appointed to run NASA's budget-strapped science office
XCOR sets 2010 as the date when its Lynx suborbital spacecraft will bring civilians to the cusp of space
Articles from past issues of Scientific American
NASA astronomers were blown away last week by what was far and away the strongest gamma-ray burst (GRB) ever observed.
Space methane suggests the possibility of space cows; space robots are serving their NASA masters (for now); and why is everything in space made of matter?
Space methane suggests the possibility of space cows, space robots are serving their NASA masters (for now), and why is everything in space made of matter?
An extrasolar planet contains methane (which, being organic, could suggest life), Canada's space robot is aweseome, RIP Arthur C. Clarke, and matter vs. antimatter - why did matter win?
Slippage in Titan's rotation suggests water between its surface and core—and a higher likelihood of ancient life on Saturn's biggest moon
Can extraterrestrial ruminants be far behind?
At a conference last week, NASA administrator Michael Griffin outlined the space agency's next phase of planetary and lunar science research. Steve Mirsky reports.
Mars may have needed acid rain to stay wet
Missing in action: ultraenergetic cosmic rays from the Virgo cluster
Why a leaky black hole is more like a mirror ball from hell
SpriteSat mission combines magnetoresistive random access memory (MRAM) with a silicon integrated circuit to read, write and store information about Earth's magnetic field
Sandy particles seen circling around a young binary star system 2,400 light years from us could be an early stage in the formation of a new earth-like planet. Steve Mirsky reports.
The star called HE 0437-5439 looks like it was tossed out of the Large Magellenic Cloud by a hypothesized black hole. Steve Mirsky explains, with reporting by Harvey Black.
Researchers hope to detect faint radiation emanating from a new laboratory version of a black hole event horizon