Today, President-elect Donald Trump’s pick for defense secretary, James "Mad Dog" Mattis, faces his Senate confirmation hearing. Mattis reportedly received his nickname "Mad Dog" after leading U.S. troops during the 2004 battle

Researchers were able to prevent immune system rejection of stem cells, blocking the usual immune responses that trigger rejection of the stem cells by the recipient's body. Using this technique, they were able to restore vision in mice as far out as nine months following the injection of these cells.

Sites like PrEPster are helping UK citizens obtain cheaper, generic forms of Truvada, a drug that can reduce the risk of getting HIV from sex by more than 90 percent. This increased access to Truvada is very likely a contributing factor in the 40 percent drop in new HIV infections last year reported by London sexual health clinics.

630 companies and investors signed and released a letter calling on President-elect Donald Trump and the U.S. government to continue the fight against climate change. With trillions in assets and revenue, these company represent a significant segment of the U.S. economy, which is put at risk by policies denying man-made climate change.