ScienceDaily: Top Science News |
- Supernova remnant 1987A continues to reveal its secrets
- Crucial step in human DNA replication observed for the first time
- Extreme algal blooms: The new normal?
- By keeping the beat, sea lion sheds new light on animals’ movements to sound
- After Newtown: A new use for a weapons-detecting radar?
- New mathematical model shows how society becomes polarized
| Supernova remnant 1987A continues to reveal its secrets Posted: 01 Apr 2013 05:28 PM PDT A team of astronomers has succeeded in observing the death throws of a giant star in unprecedented detail. In February of 1987, astronomers observing the Large Magellanic Cloud, a nearby dwarf galaxy, noticed the sudden appearance of what looked like a new star. In fact they weren't watching the beginnings of a star but the end of one and the brightest supernova seen from Earth in the four centuries since the telescope was invented. By the next morning news of the discovery had spread across the globe and southern hemisphere stargazers began watching the aftermath of this enormous stellar explosion, known as a supernova. |
| Crucial step in human DNA replication observed for the first time Posted: 01 Apr 2013 12:10 PM PDT An elusive step in the process of human DNA replication has been observed, for the first time, by scientists. The step, which is crucial for DNA replication in humans and other forms of life, had previously remained mysterious and had not been well studied in human DNA. |
| Extreme algal blooms: The new normal? Posted: 01 Apr 2013 12:10 PM PDT A research team has determined that the 2011 record-breaking algal bloom in Lake Erie was triggered by long-term agricultural practices coupled with extreme precipitation, followed by weak lake circulation and warm temperatures. The team also predicts that, unless agricultural policies change, the lake will continue to experience extreme blooms. |
| By keeping the beat, sea lion sheds new light on animals’ movements to sound Posted: 01 Apr 2013 11:31 AM PDT Move over dancing bears, Ronan the sea lion really does know how to boogie to the beat. A California sea lion who bobs her head in time with music has given scientists the first empirical evidence of an animal that is not capable of vocal mimicry but can keep the beat, according to new research. |
| After Newtown: A new use for a weapons-detecting radar? Posted: 01 Apr 2013 08:20 AM PDT In the aftermath of the Newtown school shooting, an engineering professor envisions a new use for a weapons-detecting radar system he's been developing for the past few years. |
| New mathematical model shows how society becomes polarized Posted: 01 Apr 2013 06:07 AM PDT Engineering researchers have devised a mathematical model that helps demonstrate what's behind the growing rift in American society. |
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