February 20, 2018, 5:21 p.m. by Shea Gunther
Video series challenges an expert to explain a complicated concept to people at five levels of expertise.
Watch: Shuttle Endeavour returns to Earth
July 31, 2009, 12:15 p.m.
The seven astronauts aboard Endeavour land in Florida after a 16-day mission to work on the international space station.
Media Mayhem: 7 environmental stories that are free of doom and gloom
July 20, 2009, 5:57 a.m. by Ken Edelstein
From an eco-city in China to 'towers of power' in Spain and California, some good news from the green frontier.
Video: Can Bill Gates control the weather?
July 17, 2009, 1:40 p.m.
According to a patent application recently released, Microsoft founder Bill Gates is proposing a plan to calm hurricanes.
New fish farming method provides virtually guilt-free seafood
July 6, 2009, 4:40 p.m. by S.A. Rogers
Recirculating Marine Aquaculture filters and recycles water and uses methane from fish waste to offset energy use.
Comments at a glance: Boy discovers microbe that eats plastic
June 24, 2009, 12:58 p.m. by M Hall
The good, the smart and the funny.
New type of concrete could last 16,000 years and reduce worldwide CO2 emissions
June 22, 2009, 12:36 p.m. by S.A. Rogers
Strong, light nanoengineered concrete in development at MIT could accomplish one-fifth of the Kyoto Protocol goal.