SCIENCE - TECHNOLOGY - NATURE
ANCIENT NUBIA: A BRIEF HISTORY
They battled the Romans, ruled Egypt as pharaohs and constructed vast fields of pyramids. They are the Nubians, and they are not a "lost civilization" but rather a people who are with us today, based in what is now Sudan and southern Egypt.
WHAT IS A SCIENTIFIC THEORY?
A scientific theory is a specific type of theory used in the scientific method. The term "theory" can mean something different, depending on whom you ask.
FACTS ABOUT CICADAS
Cicadas are oval-shaped, winged insects that provide a buzzing and clicking song heard in nature throughout the summer.
LOOMING OCTOPUS 'DANCES' IN WINNING UNDERWATER PHOTO
A vibrant and striking photo of an octopus spreading its tentacles in an Indian Ocean tide pool won diver Gabriel Barathieu the title of Underwater Photographer of the Year (UPY) 2017.
HERE’S OUR PLAN IF WE MEET ALIENS
The Search for Extra-Terrestrial Intelligence (SETI) League has an abundant list of protocols concerning contact with life on other planets. We can’t know for sure what to expect if, and when, aliens make contact, but our attempts to prepare give us fascinating insight into our own hopes and fears.
PUERTO RICO: GEOGRAPHY, HISTORY AND OTHER FACTS
Puerto Rico is an archipelago in the Caribbean Sea consisting of a main island and a handful of smaller ones.
WHAT IS SHORT-TERM MEMORY LOSS?
When a person experiences short-term memory loss, he or she can remember incidents from 20 years ago but is fuzzy on the details of things that happened 20 minutes prior.
FACTS ABOUT PORPOISES
Porpoises are members of the scientific order Cetacea and are related to dolphins, but the two animals are different species.
WHAT'S THE OLDEST THING ALIVE TODAY?
The oldest living thing on Earth today is … well, it's controversial.
Let's back up.
NIELS BOHR: BIOGRAPHY & ATOMIC THEORY
Niels Bohr won a Nobel Prize for the idea that an atom is a small, positively charged nucleus surrounded by orbiting electrons. He also contributed to quantum theory.