From hybrid cars to nuclear reactors, stories this week highlighted the dirty side of clean energy.
Carbon soccer balls can form into gels all by themselves, say chemists, overturning the long-held belief that gels must consist of at least two chemical components.
A Department of Energy report brings attention to the need to diversify the supply of rare-earth metals needed for cleantech and defense.
Hybrid rocket engines are rare, but a clever technique could make them more common.
Toymakers once made models by hand, but 3-D printing has changed all that.
The belief that a baseball can be hit further with a corked bat is wrong. But these illegal bats may still give an unfair advantage.
A scale model is further proof that beamed-energy propulsion works.
The first quantum memory that stores and releases entanglement has been built by researchers in Switzerland.
A new cosmology successfully explains the accelerating expansion of the universe without dark energy; but only if the universe has no beginning and no end.
A soft, flexible fiber with a 1000 times more capacitance than a co-axial cable could lead to smarter textiles, say its inventors.