What are the peculiar type-R stars made? Where does the carbon present in their shell come from? These are the questions to be solved by a research work conducted by scientists of the department of Theoretical and Cosmos ...
Astronomy
Jan 14, 2010
0
0
Earth gets blasted by mild short gamma-ray bursts (GRBs) most days. But sometimes, a giant flare like GRB 200415A arrives at our galaxy, sweeping along energy that dwarfs our sun. In fact, the most powerful explosions in ...
Astronomy
Jan 13, 2021
0
79
Two groups of astronomers have used data from ESO telescopes to make the best three-dimensional map yet of the central parts of the Milky Way. They have found that the inner regions take on a peanut-like, or X-shaped, appearance ...
Astronomy
Sep 12, 2013
0
0
Four years ago, several red giant stars were discovered to pose a paradox: even though they are built from very old stellar material, their large masses indicate a clearly younger age. Scientists from the Max Planck Institute ...
Astronomy
Jun 27, 2019
12
0
In 5 billion years or so, when the sun has used up the hydrogen in its core, it will inflate and turn into a red giant star. This phase of its life—and that of other stars up to twice its mass—is relatively short compared ...
Astronomy
Oct 29, 2019
0
354
A fresh look at red giant stars offers key insights into cosmic distance measurements and a way to measure the universe's expansion with the highest accuracy.
Astronomy
Mar 15, 2024
0
129
Stars in globular clusters are generally extremely old, with ages of 12-13 billion years. However, a small fraction of them appear to be significantly younger than the average population and, because they seem to have been ...
Astronomy
Dec 23, 2009
2
0
Scientists at the Institute of Astrophysics of the Canaries (IAC), together with collaborators at the Centre of Astrobiology (CAB) and the Polytechnic University of Cartagena (UPCT), have obtained an image of a giant planet ...
Astronomy
May 13, 2015
0
92
Two Earth-sized planets have been discovered circling a dying star that has passed the red giant stage. Because of their close orbits, the planets must have been engulfed by their star while it swelled up to many times its ...
Astronomy
Dec 21, 2011
18
0
New computer simulations from the Georgia Institute of Technology provide a conclusive test for a hypothesis of why the center of the Milky Way appears to be filled with young stars but has very few old ones. According to ...
Astronomy
Jun 7, 2016
11
54
