These deep ocean tides supply almost half of the world's oceans with vital nutrients and oxygen, but melting ice shelves are slowing them down.
A potential intermediate-mass black hole may be lurking in Messier 4, the nearest globular star cluster to Earth, new Hubble data reveals.
A man in Michigan developed deep vein thrombosis after reportedly being bitten by a brown recluse spider.
A fecal analysis from two toilets dating to biblical times in Jerusalem has revealed the oldest evidence yet of the parasite that causes dysentery.