Thursday, 9 February, 2012

Hitting the road? What could be more enlightening than gawking at a cave, exploring a desert, or eyeballing the largest telescope in the world? Need proof that science is not just books and websites or equations and software? Get moving!

The globe warms, and the Arctic starts to burn. If warming causes fires that release carbon dioxide, the primary greenhouse gas, will this accelerate further warming? A new study measures carbon releases from the largest tundra fire in North America.

New instruments are giving a better view of how those astonishingly strong lightning bolts form inside clouds – and we are also getting a better picture of the many ways that lightning can harm us.

A combined nerve-graft and enzyme treatment restored breathing to 9 of 11 rats. The bacterial enzyme dissolves a molecule that separates tissues and prevents growth of nerves and blood vessels. Could this lead to the treatment that finally breaks the logjam in spinal-cord repair?

As southwestern forests go up in smoke, we look at the long-term picture. Fighting fires has made fire the remaining fires more intense, but controlled burns have their own hazards. Are we already seeing the effect of climate change on forest fires?

Long ago, nature devised the hinge and ball and socket for appendages like legs and wings. The screw is the latest simple machine to be discovered in nature. Why do weevils, a type of beetle, have a screw? How does it help weevils survive their 3-D world?

Nearly all our food comes from the soil, but one-third of the world’s soils are degraded. Historically, advancing deserts have obliterated many thriving civilizations. Fighting desertification, soil erosion and nutrient loss may be expensive, but many of the best techniques for restoring soil health can solve several problems at once.

A new report on the ancient universe shows that most galaxies – even all of them – had a black hole at the center, much like modern galaxies. We can understand why a black hole would need to be surrounded by millions of stars, but why should galaxies require black holes?

Humans and cats have enjoyed each other’s company for millennia, but scientists have discovered some troubling secrets of free-roaming felines that have wildlife and health experts worried. A new study reveals what free-roaming cats do all day, and The Why Files investigates some implications of their outdoor habits.

White nose syndrome has killed a million bats in the eastern U.S., and spread to Nova Scotia, South Carolina and Tennessee. Why is the fungus deadly here, but not in Europe? Can quarantines, anti-fungals or heated bat houses help our bats survive the onslaught?