Sudan landslide flattens village, leaves uncertain death toll

There are conflicting reports of the death toll today, following Sunday's Sudan landslide in the remote Marra Mountains. But it appears hundreds are dead.

Sapphire: September birthstone comes in many colors

Sapphire, the September birthstone, is typically blue, the color caused by small amounts of titanium and iron in the crystal structure.

Labor Day: Learn its history and traditions

Labor Day is a federal US holiday that falls on the first Monday in September and is considered the unofficial end of summer.

Hurricane Katrina retrospective: 20 years after the storm

It is the 20th anniversary of Hurricane Katrina, one of the deadliest and costliest hurricanes to ever impact the United States.

How to find aliens: Look when their planets are aligned

A new study proposes a novel idea for how to find aliens: Look for their deep space communications when their planets are in alignment, as seen from Earth.

Starship redeems itself in spectacular 10th test flight

After a series of explosive failures this year, SpaceX’s Starship saw spectacular success during its 10th flight test on August 26, 2025.

Neanderthals and modern humans interbred 140,000 years ago

The fossil remains of a child, dated to 140,000 years ago, shows the earliest known evidence of breeding between Neanderthals and modern humans.

Human evolution complexity revealed in new African fossils

Scientists are learning more about human evolution after discovering a new species of Australopithecus that lived contemporaneously with ancient humans.

Did alcohol and evolution go hand in hand for humanity?

Alcohol and evolution: Eating alcohol-laden fruit might have helped early hominids socialize. Later, did making alcohol drive the rise of agriculture?

Why do we sleep? Study blames overloaded brain cells

Why do we sleep? University of Oxford researchers may have cracked the mystery: an electrical buildup within cellular components.