Scientists discover ancient interstellar dust that formed the Earth and the solar system

Scientists have discovered some of the original interstellar dust that formed the Earth and the Solar System billions of years ago. The discovery is the “surviving pre-solar interstellar dust that formed the very building blocks of planets and stars,” said study lead author Hope Ishii.

     

 

 


Source: USA Today

Curiosity Rover Finds Ancient 'Building Blocks for Life' on Mars

  1. Curiosity Rover Finds Ancient ‘Building Blocks for Life’ on Mars  Space.com
  2. What has NASA found on Mars? Get set for major announcement  Fox News
  3. Finally, scientists have found intriguing organic molecules on Mars  Ars Technica
  4. Organic matter preserved in 3-billion-year-old mudstones at Gale crater, Mars | Science  Science
  5. Newest NASA discoveries could boost search for ancient life on Mars  Washington Post
  6. Full coverage


Source: Google News

Two ancient populations that diverged later 'reconverged' in the Americas

A new genetic study of ancient individuals in the Americas and their contemporary descendants finds that two populations that diverged from one another 18,000 to 15,000 years ago remained apart for millennia before mixing again. This historic ;reconvergence; occurred before or during their expansion to the southern continent.
Source: Science Daily

In ancient boulders, new clues about the story of human migration to the Americas

A geological study provides compelling evidence to support the hypothesis that ancient humans migrated into the Americas via a coastal route. By analyzing boulders and bedrock, a team shows that part of a coastal migration route became accessible to humans 17,000 years ago. During this period, ancient glaciers receded, exposing islands of southern Alaska’s Alexander Archipelago to air and sun — and, possibly, to human migration.
Source: Science Daily

The triumph of random testing, a quest for ancient wine, and a history of mirages: Books in brief

The triumph of random testing, a quest for ancient wine, and a history of mirages: Books in brief

The triumph of random testing, a quest for ancient wine, and a history of mirages: Books in brief, Published online: 30 May 2018; doi:10.1038/d41586-018-05263-1

Barbara Kiser reviews five of the week’s best science picks.
Source: Nature