Two studies shed additional light on a murky question: How did the cosmic fog that enveloped the universe in its early days dissipate?
The whole point of an explanation is to reduce something you don’t know to something you do. By that standard, you don’t gain much by explaining anything in terms of black holes. Appealing to the most mysterious objects known to science as an explanation sounds like using one mystery to explain another. Yet this is…
The man known to a generation of Americans as “The Science Guy” is condemning efforts by some Christian groups to cast doubts on evolution and lawmakers who want to bring the Bible into science classrooms. Bill Nye, a mechanical engineer and star of the popular 1990s TV show “Bill Nye The Science Guy,” has waded…
Limited access to clean sources of energy, known as energy poverty, makes nearly half the world’s population reliant on burning wood, animal waste, coal or charcoal to cook. This leads to severe respiratory diseases that kill roughly two million people worldwide each year. It is often women and children who suffer the most from indoor…
Astronomers have managed to detect the telltale fingerprints of organic life on Earth using a new technique that examines sunlight reflected onto the moon by our planet. The so-called “earthshine” observations may pave the way for a similar tool to help spot signs of alien life in the universe, scientists say. While the existence of…
Neutrinos which appeared to have undermined a basic law of the universe by exceeding the speed of light might have done so even faster than first thought – or might not have done it at all, said scientists at the Gran Sasso laboratory in Italy. Tests on the equipment used in their experiment had led…
At very low temperatures, close to absolute zero, chemical reactions may proceed at a much higher rate than classical chemistry says they should—because in this extreme chill, quantum effects enter the picture. A Weizmann Institute team has now confirmed this experimentally; their results would not only provide insight into processes in the intriguing quantum world…