The molecular gas in galaxies is organized into a hierarchy of structures. The molecular material in giant molecular gas clouds travels along intricate networks of filamentary gas lanes towards the congested centers of gas ...
Astronomy
Jul 7, 2020
9
45
A surprising analysis of the composition of gas giant exoplanets and their host stars shows that there isn't a strong correlation between their compositions when it comes to elements heavier than hydrogen and helium, according ...
Astronomy
Dec 3, 2019
1
122
Globular clusters may contain hundreds of thousands of stars and may even have as many as ten million stars that essentially emerged at the same time. They are the oldest visible objects in the universe. Globular clusters ...
Astronomy
Nov 4, 2019
6
273
What is the difference between a planet-satellite system as we have with the Earth and moon, versus a binary planet—two planets orbiting each other in a cosmic do-si-do?
Astronomy
Oct 3, 2019
0
138
There is an as-yet-unseen population of Jupiter-like planets orbiting nearby Sun-like stars, awaiting discovery by future missions like NASA's WFIRST space telescope, according to new models of gas giant planet formation ...
Astronomy
Sep 27, 2019
1
229
It is known that gas giants around other stars are often located very near their sun. According to accepted theory, these gas planets were formed far away and subsequently migrated to an orbit closer to the star. Now, researchers ...
Astronomy
Mar 25, 2019
50
849
The sun, like all stars, was born in a giant cold cloud of molecular gas and dust. It may have had dozens or even hundreds of stellar siblings – a star cluster – but these early companions are now scattered throughout ...
Astronomy
Nov 7, 2018
20
102
There are about 4433 exoplanets in the latest catalogs. Their radii have generally been measured by knowing the radius of their host star and then closely fitting the lightcurves as the planet transits across the face of ...
Astronomy
Sep 24, 2018
2
217
A multi-institutional team of researchers has discovered silica mineral quartz in a primitive meteorite, comprising direct evidence of silica condensation within the solar protoplanetary disk, and offering new clues to understanding ...
Space Exploration
Aug 23, 2018
0
222
A team of researchers with Keele University in the U.K. has described one of the darkest planets ever observed. In their paper uploaded to the arXiv preprint server, the team describes the planet and where it appears to stand ...
