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PhysicsNew supergas debuts
A cloud of ultracold potassium atoms, manipulated by means of a magnetic field, has coalesced into a new super form of matter called a fermionic condensate.
By Peter Weiss -
Health & MedicineSome T cells may be a fetus’ best friend
While pregnant, mice overproduce a kind of T cell that reins in other immune cells that might target the fetus.
By Nathan Seppa -
Planetary ScienceA view of Mars, European style
Although the Mars lander Beagle 2 is presumed dead, its mother craft, the European Space Agency's Mars Express, has transmitted its first data from a polar orbit about the Red Planet.
By Ron Cowen -
MathComputing on a Cellular Scale
The behavior of leaf pores resembles that of mathematical systems known as cellular automata.