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That pesky wisdom tooth you're glad you got rid of is apparently a great source of stem cells that could save lives. However, it's not easy getting to the tooth root pulp that contains those cells: drilling into the tooth generates damaging heat that lowers the number of cells that can be harvested. In addition, the water used to rinse the tooth could have corrosive elements and the enamel particulates from the drilling could contaminate the pulp. To solve that issue, a team of researchers from the University of Nevada Las Vegas have developed a device they hilarious call the "Tooth Cracker 5000" to extract 80 percent of the stem cells a pulp contains.

A chain of solidarity was formed to help people affected by the massacre.

Las Vegas shooter Stephen Paddock killed Sunday 58 people and injured nearly 500 others. But he has also traumatized a whole city, which now seeks to relieve his anguish.

The creators of a remembrance garden in north Las Vegas have invited people to leave messages and reflect as the city tries to process its grief.

One of its creators, landscape architect Mark Hamalmann, said it is a "remembrance garden," featuring 58 trees planted along a small paved walkway. In the middle, there is a large oak tree representing the "tree of life," while American flags adorn a wooden fence.

Apart from the twinkling lights of hotels and casinos , a small healing park was opened in the north of Las Vegas , as part of citizen efforts to heal the wounds left in the city by the fatal shooting last Sunday.

After escaping Hurricane Harvey in Houston, Royce Christensen worked at the Las Vegas music festival.

Stem cells have the potential to revolutionize treatment for a wide array of diseases, such as Alzheimer’s and Parkinson’s, though harvesting enough of them for beneficial use and keeping them viable until they are needed presents significant challenges. So, researchers at the ��ҳ| �鶹��ýӳ�� (UNLV), have developed an efficient technique for taking these cells from a common source—wisdom teeth.

Vice President Mike Pence, who chairs the revived National Space Council, wrote today in an op-ed in the Wall Street Journal that "America will be the first nation to bring mankind to Mars." These plans follow Elon Musk's announcement last week that a small group of astronauts will be ready to leave Earth in 2024 and head to Mars. But is all this possible in just seven years as a continuation of the technological advances we've seen, or are significant science and engineering breakthroughs needed to reach their goals?