The amount of trace elements in ocean pyrite correspond to ocean oxygen concentrations at different points in geologic time.
The airborne Stratospheric Observatory for Infrared Astronomy (SOFIA) is a flying observatory aboard a modified Boeing 747 that takes infrared astronomy readings at approximately 41,000 feet above the Earth’s surface. It recently observed a mini-eclipse of the extrasolar planet named READ MORE
Unlike humans, who depend on oxygen to breathe, bacteria have the ability to breathe many other molecules besides oxygen. While most of our Earth is soaked in oxygen, there are areas that have little to none. In sediments at the READ MORE
Jacob Haqq-Misra, Ravi Kopparapu, and Eric Wolf attempt to address this question in a recent paper titled “Why do we find ourselves around a yellow star instead of a red star?” and published in International Journal of Astrobiology.
If intelligent aliens exist somewhere in the depths of space, then should we see signs of their technology? This question has motivated scientists involved in the search for extraterrestrial intelligence (SETI) to hunt for evidence of tell-tale signs of alien READ MORE
by Marc Claire Research Scientist Detecting life on a planet beyond Earth would be one of the coolest things ever! In our paper, we talk about detecting signs of life on other planets that breathe out oxygen. While this strategy READ MORE
by Tuuli Mäkinen University of Jyväskylä, Finland It was no ordinary fishing trip. In May 2011, Denis Tweddle, a research associate of the South African Institute for Aquatic Biodiversity (SAIAB), led an expedition to collect little-known fishes from the remote rivers READ MORE
My research interests are centered on the evolutionary relationships among species of seahorse and pipefish in the family Syngnathidae through morphological study and DNA sequencing. This entails collecting and observing fish for study via scuba diving and photography in shallow inshore water in READ MORE
You might expect that a term like “monsoon” has an agreed definition and that scientists can explain when it starts and ends. Defining the monsoon is actually quite contentious, leading to the publication of many different definitions. Some define the READ MORE
Long-term patterns in Earth’s climate show glacial cycles that correspond to variations in Earth’s orbital geometry and affect the overall amount of sunlight that the planet receives. Known as “Milankovitch cycles”, these variations are observed in geologic reconstructions of temperature and READ MORE