Four baby planets show how super-Earths and sub-Neptunes form

Thanks to the discovery of thousands of exoplanets to date, we know that planets bigger than Earth but smaller than Neptune ...

Earth's early sponges were soft: Scientists close fossil record gap

Sponges are among Earth's most ancient animals, but exactly when they evolved has long puzzled scientists. Genetic information from living sponges, as well as chemical signals from ancient rocks, ...
New Scientist on MSN

Super-low density worlds reveal how common planetary systems form

Most planetary systems contain worlds larger than Earth but smaller than Neptune, and the low-density planets around one ...
Live Science on MSN

Last common ancestor of modern humans and Neanderthals possibly found in Casablanca, Morocco

In the research, published Wednesday (Jan. 7) in the journal Nature, a team of Moroccan and French researchers detailed their ...

Fossils unearthed in Morocco are first from little-understood period of human evolution

Fossils unearthed in Morocco are the first from a little-understood period of human evolution and may be remains of a mysterious human ancestor.