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Residents in the Russian republic of Yakutia were treated to a light show as the asteroid harmlessly burned up.

The sun cycles between periods of low and high activity over 11 years. The maximum can bring stunning light displays and offer NASA scientists unique research opportunities.

A new study describes ancient footprints from the species Homo erectus and Paranthropus boisei that were left near a lake in Kenya within hours or days of one another.

A filament eruption on Monday is ushering in the possibility that night skies could light up in greens, reds and purples this Thanksgiving.

The space station crew will feast on smoked turkey, apple cobbler, green beans, mushrooms and mashed potatoes, Williams told NBC News in an interview from orbit.

Daniel Andreas San Diego is accused of setting off homemade explosives at two Northern California companies he believed were conducting animal experiments.

Rachel Maddow sums up the story of how RFK Jr. is seen as largely responsible for an explosion of measles cases on the island of Samoa after he spread anti-vaccination claims. Brian Deer, author of "The Doctor Who Fooled the World," joins to discuss.

Geopolitical turmoil and worries of a looming U.S. withdrawal from global climate cooperation loomed large in Baku and will continue to overshadow global climate efforts in the months ahead.

A new small study suggests that hot water can help muscles repair themselves and become stronger.

The study on two juvenile males comes amid concern about the effects of ocean noise on some of the largest and most intelligent animals on Earth.