Astronomers have completed the largest survey to date of the faint outskirts of nearby galaxies, successfully testing a low-cost system for exploring these local stellar systems. R. Michael Rich of the University of California, ...
Astronomy
Oct 15, 2019
0
165
Researchers from the Instituto de Astrofísica de Canarias (Spain) and the University of Cambridge (UK) have detected lithium (Li) in the ancient star J0023+0307, a main-sequence extremely iron-poor dwarf star about 9,450 ...
Astronomy
Apr 18, 2019
0
22
The potential discovery of a planet orbiting Barnard's Star – the second closest stellar system to the sun – was announced by researchers today in Nature.
Astronomy
Nov 15, 2018
16
27
An ancient Egyptian papyrus, known as the Cairo Calendar, could be the oldest historical record of a star's brightness, providing a new perspective on the development of the Algol triple star system over thousands of years.
Archaeology
Nov 12, 2018
1
976
No one has yet observed the first stars that formed in the Milky Way. In all likelihood, they will never be directly observed, because the first stars are massive, ending their lives only a few millions years after their ...
Astronomy
Jun 17, 2016
0
35
The Ancient Egyptian papyrus Cairo 86637 calendar is the oldest preserved historical document of naked eye observations of a variable star, the eclipsing binary Algol - a manifestation of Horus, a god and a king. This calendar ...
Space Exploration
Dec 17, 2015
0
1344
Anna Frebel has unearthed some of the oldest stars in the universe, meticulously extricating them from the billions of stellar grains in the sky. By determining the chemical composition of these ancient stars, she hopes to ...
Astronomy
Dec 3, 2015
1
8
(Phys.org) —Reconstructing the history of our Galaxy has just become a whole lot easier, thanks to a team of international astronomers led by Dr Luca Casagrande from the Research School of Astronomy and Astrophysics.
Astronomy
Apr 7, 2014
0
0
(Phys.org) —Astronomers expect that stars like the Sun will blow off much of their atmospheres into space near the ends of their lives. But new observations of a huge star cluster made using ESO's Very Large Telescope have ...
Astronomy
May 29, 2013
1
0
(Phys.org)—Peering deep into the vast stellar halo that envelops our Milky Way galaxy, astronomers using NASA's Hubble Space Telescope have uncovered tantalizing evidence for the possible existence of a shell of stars that ...
Astronomy
Feb 21, 2013
9
0
