NASA has arrived at two ways of returning samples collected on Mars to Earth. Now, the agency will test the options to see if ...

If you like the smell of spring roses, the sounds of summer birdsong, and the colors of fall foliage, you have the stabilization of the ozone layer to thank for it. Located in the stratosphere, where ...

In a new peer reviewed analysis, scientists quantify amino acids before and after our “last universal common ancestor.” The ...

Ancient species may have evolved at a slower pace and endured longer, but evolutionary rates sped up significantly following ...

The Mars Sample Return mission has been ranked as the highest priority by planetary scientists, who hope to find signs of ancient life on Mars.

The Mars Sample Return effort was billions of dollars over budget and not expected to return to Earth with its samples until 2040.

Previously, the Mars Sample Return mission had been estimated to cost around 11 billion dollars and would not return a sample ...

Archaeologists have discovered some of the first-ever tools used on Earth at a site dubbed 'the cradle of humankind.' They found 3mn-year-old knives made from stones.

Researchers have unveiled a cosmic cycle where carbon, created in the explosions of stars, travels through space via a ...

With chalk in hand, the Sohu CEO welcomed the new year in a lecture bridging science, everyday life, and the digital ...