Two studies shed additional light on a murky question: How did the cosmic fog that enveloped the universe in its early days dissipate?
A new company backed by two Google Inc. billionaires, film director James Cameron and other space exploration proponents is aiming high in the hunt for natural resources—with mining asteroids the possible target. The venture, called Planetary Resources Inc., revealed little in a recent press release except to say that it would “overlay two critical sectors—space…
The world’s leading candidate for a malaria vaccine has cleared another hoop on the way to widespread use, proponents say. But the vaccine’s low efficacy against severe forms of the disease have disappointed some experts. Author Metanexus Editors
A dark lump of rock found in the Moroccan desert in 2011 is a new type of Martian meteorite, say scientists. Weighing 320g, the stone has been given the name Northwest Africa (NWA) 7034. Its texture and chemistry set it apart from all previous objects picked up off the surface of Earth but known to…
Atmospheric volumes of greenhouse gases blamed for climate change hit a new record in 2011, the World Meteorological Organization (WMO) reported. The volume of carbon dioxide, the primary greenhouse gas emitted by human activities, grew at a similar rate to the previous decade and reached 390.9 parts per million (ppm), 40% above the pre-industrial level,…
David Christian was recently interviewed at Davos, the annual meeting of the World Economic Forum, where he introduced the Big History curriculum and its benefits for a global civilization.
Earth should be a “snowball planet,” according to common theories of stellar evolution that predict that the sun was only 70 percent of its current brightness when it first lit its fusion engine 4.5 billion years ago. The sun has been steadily growing brighter since then and will continue so into the future, eventually evaporating…