Search for signs of ancient microbial life in the geological record is challenging due to degradation of the primary organic material. Therefore, proof of biogenic origin often relies on chemical signatures that microorganisms ...
Earth Sciences
Jun 27, 2018
0
23
Geoscientists from Michigan Technological University, University of Wisconsin Oshkosh and ETH Zurich have traced the age and chemical signatures stored in tiny zircon minerals to examine the recycling of carbon from the mantle ...
Earth Sciences
Nov 27, 2017
0
63
Astronomers are borrowing principles applied in biology and archaeology to build a family tree of the stars in the galaxy. By studying chemical signatures found in the stars, they are piecing together these evolutionary trees ...
Astronomy
Feb 20, 2017
7
2031
It had been thought that all ants, wasps and other eusocial insects used a common class of chemical compounds to distinguish queens from workers and other members of their colonies or hives. But new research finds that there ...
Plants & Animals
Feb 3, 2016
0
460
In its early life, Earth suffered a meteorite pummelling that lasted 100 million years and may have changed its chemical makeup forever, researchers said Wednesday.
Earth Sciences
Sep 23, 2015
2
81
Astronomers usually spend their time contemplating the heavens above. But one group of dedicated stargazers has challenged the community to look instead to the future, envisioning the tools for generating more celestial discoveries.
Space Exploration
Jul 7, 2015
0
317
Salmon carry a strontium chemical signature in their "ear bones" that lets scientists identify specific streams where the fish hatched and lived before they were caught at sea. The new tool may help pinpoint critical habitats ...
Ecology
May 15, 2015
0
90
(Phys.org) —It's been a busy week for space scientists—a team of astronomers discovered the first Thorne-Zytkow object—it's a weird type of hybrid between a red supergiant and a neutron star that looks like a regular ...
(Phys.org) —Some Sun-like stars are 'Earth-eaters.' During their development they ingest large amounts of the rocky material from which 'terrestrial' planets like Earth, Mars and Venus are made.
Astronomy
May 20, 2014
3
0
A team of Galactic archaeologists has uncovered new insights into the formation of the earliest stars and galaxies by observing the chemical signatures of ancient 'fossil' stars present in the outer and inner halos encircling ...
Astronomy
May 5, 2014
0
0
