Shridar Chillal hasn't trimmed his fingernails in 62 years.
Credit: Courtesy of Guinness World Records
Each week we uncover the most interesting and informative articles around, here are 10 of the coolest stories in Science this week.
Big watery Martian news! A recently released study indicates that liquid water flows on Mars today, increasing the likelihood that life may exist on the Red Planet.
[Full Story: Salty Water Flows on Mars Today, Boosting Odds for Life]
50 Medieval skeletons: By studying the remains of 50 medieval pilgrims archaeologists hope to determine their sex, age and health at time of death.
Fingernail science: Building on a man in India who made his way into the Guinness Book of World Records for having the long’s longest fingernails, here are five of your toughest nail questions, answered.
Perceptions of beauty: About 50 percent of the time, people disagree about whom they find attractive and in a recent study researchers found that this disagreement is largely due to differences in people's individual environments, as opposed to genetics.
[Full Story: Beauty or Beast? Why Perceptions of Attractiveness Vary]
The reality of the 'Angelina effect': A new study in the journal Cancer is the first prospective study on the "Angelina Effect".
Weird effects of raging wildfires: Forest fires, while terrifying and destructive, often result in unforeseen benefits and dangers, such as helping predators find food and making soil water resistant.
Why snakes still have 'leg genes': Snakes have functional versions of limb-enhancing genes, and new research finds they're using this DNA to develop the embryonic phallus.
[Full Story: Snakes Use 'Leg Genes' to Make Phalluses]
Another role of gut bacteria: Infants who lack certain types of gut bacteria in the first few months of life may be at increased risk for asthma when they're older, a new study from Canada suggests.
[Full Story: Babies' Gut Bacteria May Signal Later Asthma Risk]
Tattoos and your health: Live Science asked a dermatologist about weird ways tattoos can affect your health, including infections, allergies and burns.
[Full Story: Strange Designs: 5 Weird Ways Tattoos Affect Your Health]
Elaborate ancient mosaic: An expensive and elaborate church mosaic from the Byzantine period is restored and opened for the public to view in Israel.