Science Weekly Digest
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- When Will The First Human Leave The Solar System?
One thousand years. That is the minimum length of time it would take us to get to the nearest star - Proxima Centauri - using current methods.
But since we discovered that this star houses a potentially habitable planet, scientists have been more enthusiastic about the idea of interstellar travel than ever before.
2. PET Scans Show Many Alzheimer's Patients May Not Actually Have The Disease
A significant portion of people with mild cognitive impairment or dementia who are taking medication for Alzheimer's may not actually have the disease, according to interim results of a major study currently underway to see how PET scans could change the nature of Alzheimer's diagnosis and treatment.
3. Schizophrenia Found to Be Caused by Faulty Helper Cells in The Brain
New research on mice has suggested the symptoms produced by schizophrenia could largely be the result of defective cells that play an important role in supporting and insulating the nerve cells.
4. We're Closer Than Ever to Saving Lives With Livers Made in The Lab
Lab-grown livers could be saving lives much sooner than previously thought, thanks to new research, by providing some key functions of the organ without being a complete replacement.
That would mean these artificially engineered organs could prop up a failing liver or help those waiting for a transplant to hold out until a human liver became available.
5. Spectacular Findings in Australia Push Back Human Settlement by at Least 10,000 Years
The question of when people first arrived in Australia has been the subject of lively debate among archaeologists, and one with important consequences for the global story of human evolution.
Australia is the end point of early modern human migration out of Africa, and sets the minimum age for the global dispersal of humans.
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