Tag: research finding
Emma Robertson Blackmore of the University of Rochester Medical Center followed more than 13,000 women for three years after the birth of a healthy baby, and found that those who had previously miscarried were more likely to show symptoms of postpartum depression.
To probe the origin of Earth’s magnetism, a team led by John Tarduno retrieved rock samples from the Jack Hills in Western Australia – home to some of the oldest rocks on the planet.
The Earth’s magnetic field, which shields the atmosphere from harmful radiation, is at least four billion years old, according to scientists.
Since 2010, the best estimate of the age of Earth’s magnetic field has been 3.45 billion years. But now the Rochester researcher responsible for that finding has new data showing the magnetic field is far older.