With concerns growing over the Delta variant of Covid-19, here's what you need to know about whether you need to start wearing a facemask in public again. MSNBC's Brian Williams talks with Dr. Nahid Bhadelia.

Listen to the Natural History Museum in London's human origins expert, Chris Stringer, introduce the Britain: One Million Years of the Human Story exhibition and the people who have called this land their home. The dramatic story of ancient Britain, its changing landscapes and the people that lived ...

Join NASA Psyche Mission Co-Investigator Dr. Tim McCoy as he takes us on a journey from his first geology class to his current role as Curator-in-Charge of the US National Meteorite Collection at the Smithsonian National Museum of Natural History and his role on the Psyche Mission Science Team. Alon

NASA's Juno spacecraft has been orbiting Jupiter since July, 2016. But only just recently have scientists had a chance to analyze all of its data — and the results are painting a different picture of Jupiter than what anyone expected. Juno is also returning images unlike any we've ever seen, includi

Palm trees are a diverse, complex group of plants, with about 2,500 species of mostly tropical origin. All of them reproduce from seed. For palms with single trunks, it's the only way they reproduce. For palms that cluster or branch, an offset or branch can root to make a new plant. For seed formati...

Seven Earth-sized planets have been observed by NASA's Spitzer Space Telescope around a tiny, nearby, ultra-cool dwarf star called TRAPPIST-1. Three of these planets are firmly in the habitable zone. Over 21 days, NASA's Spitzer Space Telescope measured the drop in light as each planet passed in fro

The theme song of www.CommunityofLights.com is presented here with a slide show of this virtual community of individuals with similar interests and passions in: Art, Music, Photography, Drama, Spiritual, Remembrance, Romance, Humanitarian, Lifestyle, Fashion, Support Groups, Mentorship,Science, Tech...

EBEYE, MARSHALL ISLANDS — Linber Anej waded out in low tide to haul concrete chunks and metal scraps to shore and rebuild the makeshift sea wall in front of his home. The temporary barrier is no match for the rising seas that regularly flood the shacks and muddy streets with saltwater and raw sewage

Zoom into a coral reef and discover photosynthetic algae inside the coral’s cells. Reef-building corals rely on these symbionts for their survival. This stunning animation is perfect for all levels of biology and environmental science classes. Corals get their energy in part from microscopic symbiot

Watch Amazon Jeff Bezos’ space company successfully land a rocket for the 3rd Time. New Shepard flew again on April 2, 2016 reaching an apogee of 339,178 feet or 103 kilometers. It was the third flight with the same hardware. We pushed the envelope on this flight, restarting the engine for the prop