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- Archaeologists verify Florida's Mound Key as location of elusive Spanish fort
- Promising signs for Perseverance rover in its quest for past Martian life
- Giant teenage shark from the dinosaur era
- Excessive rainfall may have triggered 2018 Kilauea eruption
- DNA may not be life's instruction book -- just a jumbled list of ingredients
| Archaeologists verify Florida's Mound Key as location of elusive Spanish fort Posted: 23 Apr 2020 11:30 AM PDT Florida and Georgia archaeologists have discovered the location of Fort San Antón de Carlos, home of one of the first Jesuit missions in North America. The Spanish fort was built in 1566 in the capital of the Calusa, the most powerful Native American tribe in the region, on present-day Mound Key in the center of Estero Bay on Florida's Gulf Coast. |
| Promising signs for Perseverance rover in its quest for past Martian life Posted: 23 Apr 2020 10:04 AM PDT New research indicates river delta deposits within Mars' Jezero crater -- the destination of NASA' Perseverance rover on the Red Planet -- formed over time scales that promoted habitability and enhanced preservation of evidence. |
| Giant teenage shark from the dinosaur era Posted: 23 Apr 2020 10:04 AM PDT Scientists examined parts of a vertebral column, which was found in northern Spain in 1996, and assigned it to the extinct shark group Ptychodontidae. In contrast to teeth, shark vertebrae bear biological information, like body size, growth, and age and allowed the team surrounding Patrick L. Jambura to gain new insights into the biology of this mysterious shark group. |
| Excessive rainfall may have triggered 2018 Kilauea eruption Posted: 22 Apr 2020 10:26 AM PDT In May 2018 Kilauea volcano on the island of Hawaii erupted, touching off months of intense activity. Through August, incandescent lava from fissures spewed hundreds of feet in the air, and billowing ash clouds reached as high as six million. |
| DNA may not be life's instruction book -- just a jumbled list of ingredients Posted: 22 Apr 2020 08:23 AM PDT The common view of heredity is that all information passed down from one generation to the next is stored in an organism's DNA. But one research suggests this might not be so. In two new papers, he argues DNA is just the ingredient list, not the set of instructions used to build and maintain a living organism. The instructions, he says, are stored in the molecules that regulate a cell's DNA and other functioning systems. |
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