This week, discover the Sahara’s greener past, explore a mysterious cosmological force, marvel at a new concept for space ...

The parched desert and hillsides made an inviting canvas: By simply removing a layer of dark stones cluttering the ground, exposing the lighter sand beneath, the Nasca created markings that have ...

The researchers managed to extract DNA from the teeth and bones from two of the burials. They found that as humans migrated ...

A hot desert is often covered in sand and the plants and animals that ... They have brown fur with dark patches around their eyes that act a bit like sunglasses to protect their eyes from the ...

Some of the most intimidating sights in nature are rolling dark clouds of sand and dust that engulf ... and in some areas, desert dust has doubled in the 20th century. The impact of this phenomena ...

You can even try a day out at the desert, and hide little treats in the sand Wondering how to keep ... Tip: Add some glow-in-the-dark eggs for a night-time twist. It’s perfect for an evening ...

Access to the home is via a narrow opening carved into the concrete mass near a large water feature. The entrance pathway ...

Editor’s note: A version of this story appeared in CNN’s Wonder Theory science newsletter. To get it in your inbox, sign up for free here. Picture the Sahara, and an inhospitable landscape of ...