Secret life of sponges

Sponges are ancient marine animals, very common throughout the world's oceans and seem less affected by ocean warming and acidification.

NASA space launch system core stage moves from concept to design

The nation's space exploration program is taking a critical step forward with a successful major technical review of the core stage of the Space Launch System (SLS), the rocket that will take astronauts farther into space ...

How some tissues can 'breathe' without oxygen

Humans need oxygen molecules for a process called cellular respiration, which takes place in our cells' mitochondria. Through a series of reactions called the electron transport chain, electrons are passed along in a sort ...

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