Oceans’ true boundaries explain source of ocean water — and “garbage patches”

Plastic garbage enters oceans and accumulates in circulating “gyres”, revealing a new world ocean map defined by winds and currents. More »

Seeing fresh dust at a young supernova: Source of the planets?

Dust: it’s the source of planets, and so it matters to our understanding of the history and future of the universe. A new study finds More »

What happens as temperatures rise? A computer model and satellite radar offer the same chilling conclusion: Antarctic ice is melting. More »

As the globe warms, a sophisticated analysis of satellite records shows that tropical cyclones are moving away from the equator, as More »

In 2011, a suicidal comet brushed the sun — showing a swirling magnetic field, the source of dangerous “space weather.” What did we More »

Geologic dating shows that water has been trapped more than 2 kilometers underground since before the Cambrian explosion. This water More »

How do scientists predict an eruption? Watch volcanologists track a giant, active volcanic field in Chile’s Andes Mountains. More »

What are sinkholes? Why are some locations prone to earthly collapse? How dangerous are they? Can we detect and prevent them? More »

After an asteroid strikes, meteorite hunters go to work. What are the rules when you are looking for a hunk of outer space! More »

How do hurricanes form? How do we predict their paths? How can we improve predictions? More »

Scientists have tracked a light beam that’s half-a-million light years long to a monster black hole and found that the hole and its More »

Take a modern volcano, and multiply it by 1,000. That’s a super-volcano. Their rare eruptions change landscapes and weather. How long More »

New pix from Mars show sand dunes on the move. Mars has been dry for 1.5 billion years; could massive erosion be due to wind? Yes, says More »

Volcanic eruptions are unpredictable, but here’s a new view of the historic eruption of a Mediterranean monster. About 3,500 years ago, More »

Neutrinos travel through mass with scarcely a trace. A 1-billion ton detector at South Pole “sees” neutrinos from distant galaxies. More »