Earth

Former Hurricane Otis was not showing any thunderstorm development or precipitation on satellite imagery on Sept. 19. As a result, the National Hurricane Center declared Otis a remnant low pressure area.

NASA's Aqua satellite got a last look at the dying storm on Sept. 19 at 4:35 a.m. EDT (0935 UTC). That's when the Moderate Resolution Imaging Spectroradiometer or MODIS instrument aboard NASA's Aqua satellite analyzed Otis' cloud top temperatures in infrared light.

Average surface temperatures of the Black Sea may not have risen, according to the surprising results of a new study from the JRC.

The study used a model to simulate possible temperature changes and predict long term trends in the Black Sea's hydrodynamics.

While the surface showed no long term warming trend, the same simulations also indicated that average temperatures at 50 metres below the surface may be rising.

If you had been in northern Canada 45 million years ago, you might have encountered the distant ancestor of all of the oaks in the Americas. That single species gave rise to 220 more and two distinct lineages -- red oaks and white oaks -- that moved south through the boreal zone to populate large swaths of the continent all the way into Mexico.

The queen conch, a marine mollusk prized for its edible meat and its glossy shell, is one of the most economically and culturally important species in the Caribbean. In the past few decades, intense international fishing driven largely by the demand for export to the United States, has led to declining populations that threaten local fisheries in countries throughout the Caribbean.

Philadelphia, PA, Sept. 19, 2017 - About three million people have viewed the YouTube video of the death of American collegiate basketball player Frank Gathers from cardiac arrest during a game in 1990. The sequence of the events clearly shows the that for two entire minutes following his collapse, he received no form of cardiopulmonary resuscitation (CPR).

Why are house sparrows the exact size they are? Why aren't they hummingbird size or as large as geese?

It sounds like a strange question to ask, but it's actually an overarching question of evolution. It may be able to tell us something about how we adapt to changes in the environment. Our planet is changing and we need to change with it.

Why have we evolved as we have? Evolution theory says that we've adapted to our conditions. So sparrows are probably as big as they should be, according to their living conditions.

Biochemical engineers at the Johns Hopkins University have used sequences of DNA molecules to induce shape-changing in water-based gels, demonstrating a new tactic to produce "soft" robots and "smart" medical devices that do not rely on cumbersome wires, batteries or tethers.

The research advance, supervised by three faculty members in the university's Whiting School of Engineering, is detailed in the Sept. 15 issue of the journal Science.

Hurricane Jose producing dangerous surf and rip currents along the east Coast of the United States. Satellite imagery shows Jose is now close enough to the coast to also trigger a tropical storm warnings and watches.

Warnings and Watches in Effect

On Sept. 18, a Tropical Storm Warning is in effect for Watch Hill to Hull, Block Island, Rhode Island, Martha's Vineyard and Nantucket Island, Massachusetts. A Tropical Storm Watch is in effect for Fenwick Island to Sandy Hook, Delaware Bay South, East Rockaway Inlet, N.Y. to Watch Hill, Rhode Island.

Scientists at the Department of Energy's Lawrence Berkeley National Laboratory (Berkeley Lab) have harnessed the power of photosynthesis to convert carbon dioxide into fuels and alcohols at efficiencies far greater than plants. The achievement marks a significant milestone in the effort to move toward sustainable sources of fuel.

Scientists at the Department of Energy's Lawrence Berkeley National Laboratory (Berkeley Lab) have developed a new electrocatalyst that can directly convert carbon dioxide into multicarbon fuels and alcohols using record-low inputs of energy. The work is the latest in a round of studies coming out of Berkeley Lab tackling the challenge of creating a clean chemical manufacturing system that can put carbon dioxide to good use.