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The mystery of why the Vikings abandoned their settlements in western Greenland has puzzled historians for hundreds of years. New research is shedding light on why they left the world’s largest island during the 15th century.

The famed Galapagos giant tortoise named Diego -- estimated at over 100 years old and credited with helping to save his species after he fathered 40 percent of all tortoises on Espanola Island in the Galapagos thanks to his high sex drive -- is officially retiring, according to a release by the Giant Tortoise Restoration Initiative and translated by the Galapagos Conservancy.

Migrating animals that live in Earth's oceans may have a closer relationship with the sun than we thought. New research shows that healthy gray whales are nearly five times more likely to strand when there is a high prevalence of sunspots, and therefore high levels of radio waves emitted from solar storms.

Skywatchers have been enjoying the January full Moon, known as the ‘Wolf’ Moon, as well as a partial lunar eclipse in parts of the world.

More than 1 billion birds, reptiles and mammals may have been killed by the fires sweeping across Australian, according to a new estimate from the University of Sydney.

A picture of luminous nacreous clouds over Sweden was released by NASA on Friday.

After discovering a highly rare, 2,000-year-old measuring table that was once used to assess wine or olive oil containers in Jerusalem, experts believe they've pinpointed the location of a crucial ancient market near the Temple Mount.

Wolf Cukier, a student from Scarsdale High School in New York was just three days into a summer internship at NASA when he made a remarkable discovery.

Skywatchers are in for a treat Friday when the January full Moon, known as the wolf Moon, appears in the sky.

Cosmic rays are tiny charged particles accelerated to nearly the speed of light through some of the most violent events in the universe. By themselves they're not too awful, but in big enough numbers they can start to wreak havoc on entire galaxies. 

A 2,600-year-old brain that was discovered in 2008 shocked archaeologists at the time because it was stunningly well-preserved.

A 7-year-old painter has taken the German art world by storm.

A gigantic Siberian tiger was knocked out for a root canal, and the hours-long procedure was captured in pictures and on video.

Astronomers have detected the farthest ever galaxy group so far, three galaxies that have helped to alter the universe by resulting in a "sweeping cosmic makeover."

Satellite images show the debris field of the Ukrainian passenger plane that crashed shortly after takeoff from Tehran’s international airport Wednesday, killing all 176 people on board.

An ancient Stonehenge-style stone in West Cornwall, U.K., has been defaced with 'alien' graffiti.

Jupiter is being accused of actively flinging dangerous objects into the inner solar system that could impact Earth.

New research reveals the U.S. states that saw the most lightning activity in 2019, with Texas topping the list.

A newly discovered drawing from a 14th-century "Italian pilgrim" is the oldest drawing of Venice, a city that was once home to some of the most renowned artists in history.

Researchers have discovered a 100-million-year-old slime mold and a lizard leg perfectly preserved in amber from a tree in Myanmar, a find described as "unique."