Drop a marble and a cannon ball off the Leaning Tower of Pisa at the same time and they will hit the ground at the same time. That fact is explained by Albert Einstein's theory of gravity—general relativity—which predicts ...
Astronomy
Jul 4, 2018
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Einstein's understanding of gravity, as outlined in his general theory of relativity, predicts that all objects fall at the same rate, regardless of their mass or composition. This theory has passed test after test here on ...
Astronomy
Jul 4, 2018
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2003
Astronomers have identified the first metal-polluted white dwarf star from the Gaia Data Release 2 (DR2) provided by ESA's Gaia satellite. The newly found star received designation GaiaJ1738−0826. The finding is detailed ...
Measuring the mass of a celestial body is one of the most challenging tasks in observational astronomy. The most successful method uses binary systems because the orbital parameters of the system depend on the two masses. ...
Astronomy
Mar 19, 2018
0
117
This week, Nature published an article that could challenge the theory of stellar evolution.
Astronomy
Jan 12, 2018
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University of Canterbury astrophysicist Dr Simone Scaringi has made an unexpected and exciting new discovery related to the way white dwarfs grow in space.
Astronomy
Dec 14, 2017
3
179
Light from a supernova explosion in the nearby starburst galaxy M82 is reverberating off a huge dust cloud in interstellar space.
Astronomy
Nov 9, 2017
4
303
Matter in the cores of old white dwarfs and the crusts of neutron stars is compressed to unimaginable densities by intense gravitational forces. The scientific community believes this matter is composed of Coulomb crystals ...
Plasma Physics
Nov 7, 2017
0
7
A group of Brazilian astronomers observed a pair of celestial objects rarely seen in the Milky Way: a very low-mass white dwarf and a brown dwarf.
Astronomy
Nov 6, 2017
0
23
Beneath an elegant office building with a Spanish-style red tiled roof in Pasadena, California, three timeworn storerooms safeguard more than a century of astronomy. Down the stairs and to the right is a basement of wonder. ...
Astronomy
Nov 2, 2017
0
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