Oct 10, 2013 — A study shows that genes that help our skin withstand damage from ultraviolet light kick in during the day. At night, our skin focuses instead on regenerating cells that were damaged during the day. This built-in system helps protect us from premature aging and skin cancer.
Oct 7, 2013 — The trio was celebrated by the Nobel committee for unlocking a key mystery of cell function. The researchers "have revealed the exquisitely precise control system for the transport and delivery of cellular cargo," the committee says.
Sep 26, 2013 — The tiny organism has an internal clock that triggers it to swim vigorously every 12.4 hours, coinciding with the changing tide — even when it's removed from its habitat.
Sep 13, 2013 — We find ourselves drawn to the belief that physics alone investigates the basis of the universe, reality as it really is, beyond parochial human interests and values. Alva NoŽ asks if we can actually accept this, or if there is more to the universe than the particles and fields of physics.
Jun 19, 2013 — The diversity of life on Earth, and its ever-growing complexity, leads many people to think that there must be a purpose to its existence. Commentator Marcelo Gleiser argues that, quite the contrary, the only purpose of life is to preserve itself. There is no hidden hand behind it all.
Mar 10, 2013 — Not only is there no consensus yet on how life might have started on Earth, there is not even any agreement on where it started. But still, many think the mystery of life's origin can be solved. Commentator Wim Hordijk revels in the subject at a conference hosted by Princeton University.
Feb 8, 2013 — We know a great deal about life and its pre-biotic precursors. But do we now understand how life is built from non-life? This is still an open question. Philospher Alva NoŽ considers this state of affairs in the context of the storm of controversy surrounding Thomas Nagel's book.
Dec 17, 2012 — Secretions from a brown frog's skin contain chemicals that might be useful in fighting bacteria. Russian researchers are cataloging compounds in the slimy goo. Although the odds against them are long, the researchers hope their work will aid the search for new drugs.
Nov 8, 2012 — Anchoring himself to a tiny patch of Tennessee forest, a scientist takes notes on what he sees and hears. He conducts no experiments and collects no samples. Commentator Barbara J. King offers an appreciation of evolutionary biologist David Haskell's approach to science.
Oct 12, 2012 — Can natural science find a place for us in its vision of the cosmos? Thomas Nagel, in a new book, demands we take this question seriously. He is right to do so.